[MBZ] high E300 gasser idle
Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
Ed, when you are stopped in D with this high idle problem, you are putting extreme pressure on the transmission which will lead very shortly to a Ka Blamo of the transmission. Don't drive it until you can get this serious problem fixed. My 92 500SL is now sitting in my garage as undriveable until I can get the same problem fixed. My issue is a bad ETA. Again, your transmission is having a serious fight with the engine and guess who's going to win? On 8/19/07, E M [EMAIL PROTECTED] wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
When is the last time you tested your O2 sensor, in a KE car the O2 sensor is the most important input when the car is at operating range. If it is telling the system that the exhaust is lean then the FI computer will try and dump more fuel into the motor. However if this is an intermittent problem I would be looking at temp sensor going wonky, which will tell the idle adjustment motor to up the amount of air going into the motor. Air leak? Doubtful as it would be a constant thing and a vacuum tube leaking (which can be intermittent) wouldn't cause this amount of high idle. Just to explain this a bit more, in order to have a high smooth idle of 1700-2000 you need both more air and fuel, just having one will make the car run like a dog. So if you have an air leak on the other side of the air flow sensor plate then you will not have more fuel going into the engine and as such will have a lean mixture (lots of air but not enough fuel). How familiar are you with the CIS/E system? What you really wanna do is to reproduce the problem on demand by making the motor think it is cold when in fact it is at operating temp. If by doing this it goes up to the high idle you mentioned, then you know which circuit is being naughty. Also the later KE (KE3(?)) systems have a primitive fault code readout which is easy to do with the right equipment. Hopefully others will stop talking about you know what and help you out with your real MB problem. BTW is it a E300 or 300E, they are two very different cars with very different FI systems. E M wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
Hi John, yes, I'm sure you are right in that the added pressure is being transfered to the tranny, though of course you don't see the high rpm until the load is taken off the trans, and the car is parked. Funny enough, today, the problem seems to have been somewhat fixed, under similar driving conditions. I find these problems that come and go the most frustrating to trace! Ed 300E On 19/08/07, John Freer [EMAIL PROTECTED] wrote: Ed, when you are stopped in D with this high idle problem, you are putting extreme pressure on the transmission which will lead very shortly to a Ka Blamo of the transmission. Don't drive it until you can get this serious problem fixed. My 92 500SL is now sitting in my garage as undriveable until I can get the same problem fixed. My issue is a bad ETA. Again, your transmission is having a serious fight with the engine and guess who's going to win? On 8/19/07, E M [EMAIL PROTECTED] wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
I last check the 02 with a dwell meter off the test terminal on the inside fender about a month ago. At that time, it was fine. I am somewhat familiar with a CIS system, not an expert, but have kind of a working knowledge of most of the systems. Not sure about the temp sensor though, as I don't think the CIS on my old 911SC has one, but I could be wrong?? Where would I look for and test the temp sensor on my car? It's a 1988 W124 with the 3litre gas engine. I don't think my car has the system whereby you can pull any codes, but again, I could be wrong. Thanks again for your help. If I can't figure it out, I can always take it out into a field and shoot it! hee hee Ed 300E...the high idle isn't the problem, is all the slow traffic. lol :-) On 19/08/07, Hendrik [EMAIL PROTECTED] wrote: When is the last time you tested your O2 sensor, in a KE car the O2 sensor is the most important input when the car is at operating range. If it is telling the system that the exhaust is lean then the FI computer will try and dump more fuel into the motor. However if this is an intermittent problem I would be looking at temp sensor going wonky, which will tell the idle adjustment motor to up the amount of air going into the motor. Air leak? Doubtful as it would be a constant thing and a vacuum tube leaking (which can be intermittent) wouldn't cause this amount of high idle. Just to explain this a bit more, in order to have a high smooth idle of 1700-2000 you need both more air and fuel, just having one will make the car run like a dog. So if you have an air leak on the other side of the air flow sensor plate then you will not have more fuel going into the engine and as such will have a lean mixture (lots of air but not enough fuel). How familiar are you with the CIS/E system? What you really wanna do is to reproduce the problem on demand by making the motor think it is cold when in fact it is at operating temp. If by doing this it goes up to the high idle you mentioned, then you know which circuit is being naughty. Also the later KE (KE3(?)) systems have a primitive fault code readout which is easy to do with the right equipment. Hopefully others will stop talking about you know what and help you out with your real MB problem. BTW is it a E300 or 300E, they are two very different cars with very different FI systems. E M wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
The symptoms - high RPM when out of gear just means that the engine is being forced to run slower when in gear and all of that extra energy is being dumped into the transmission when it's in gear. And the torque converter is converting it into heat if it gets hot enough, you won't be going too far Ka Blamo of the transmission is a pretty accurate description of the failure that WILL OCCUR if you continue to drive the car without fixing the high idle problem. Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of E M Sent: Sunday, August 19, 2007 5:46 PM To: Mercedes Discussion List Subject: Re: [MBZ] high E300 gasser idle Hi John, yes, I'm sure you are right in that the added pressure is being transfered to the tranny, though of course you don't see the high rpm until the load is taken off the trans, and the car is parked. Funny enough, today, the problem seems to have been somewhat fixed, under similar driving conditions. I find these problems that come and go the most frustrating to trace! Ed 300E On 19/08/07, John Freer [EMAIL PROTECTED] wrote: Ed, when you are stopped in D with this high idle problem, you are putting extreme pressure on the transmission which will lead very shortly to a Ka Blamo of the transmission. Don't drive it until you can get this serious problem fixed. My 92 500SL is now sitting in my garage as undriveable until I can get the same problem fixed. My issue is a bad ETA. Again, your transmission is having a serious fight with the engine and guess who's going to win? On 8/19/07, E M [EMAIL PROTECTED] wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
Ed, that's because the transmission is trying to bring the rpm's down to normal in D. Shift to N or P and you will see the RPM's move up the scale. Using the A/C will bring the RPM's down somewhat. When my problem first appeared, I would shift into N at a long stop light but that's not good for the driveline either as it clunks into D or R. And, i would have to shut it down in D as a precaution against dieseling, etc. John On 8/19/07, E M [EMAIL PROTECTED] wrote: Hi John, yes, I'm sure you are right in that the added pressure is being transfered to the tranny, though of course you don't see the high rpm until the load is taken off the trans, and the car is parked. Funny enough, today, the problem seems to have been somewhat fixed, under similar driving conditions. I find these problems that come and go the most frustrating to trace! Ed 300E On 19/08/07, John Freer [EMAIL PROTECTED] wrote: Ed, when you are stopped in D with this high idle problem, you are putting extreme pressure on the transmission which will lead very shortly to a Ka Blamo of the transmission. Don't drive it until you can get this serious problem fixed. My 92 500SL is now sitting in my garage as undriveable until I can get the same problem fixed. My issue is a bad ETA. Again, your transmission is having a serious fight with the engine and guess who's going to win? On 8/19/07, E M [EMAIL PROTECTED] wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
Look at the small rectangular box that's attached to the side of the fuel distributor. It contains a reed valve the reed may be cracked. Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of E M Sent: Sunday, August 19, 2007 5:55 PM To: Mercedes Discussion List Subject: Re: [MBZ] high E300 gasser idle I last check the 02 with a dwell meter off the test terminal on the inside fender about a month ago. At that time, it was fine. I am somewhat familiar with a CIS system, not an expert, but have kind of a working knowledge of most of the systems. Not sure about the temp sensor though, as I don't think the CIS on my old 911SC has one, but I could be wrong?? Where would I look for and test the temp sensor on my car? It's a 1988 W124 with the 3litre gas engine. I don't think my car has the system whereby you can pull any codes, but again, I could be wrong. Thanks again for your help. If I can't figure it out, I can always take it out into a field and shoot it! hee hee Ed 300E...the high idle isn't the problem, is all the slow traffic. lol :-) On 19/08/07, Hendrik [EMAIL PROTECTED] wrote: When is the last time you tested your O2 sensor, in a KE car the O2 sensor is the most important input when the car is at operating range. If it is telling the system that the exhaust is lean then the FI computer will try and dump more fuel into the motor. However if this is an intermittent problem I would be looking at temp sensor going wonky, which will tell the idle adjustment motor to up the amount of air going into the motor. Air leak? Doubtful as it would be a constant thing and a vacuum tube leaking (which can be intermittent) wouldn't cause this amount of high idle. Just to explain this a bit more, in order to have a high smooth idle of 1700-2000 you need both more air and fuel, just having one will make the car run like a dog. So if you have an air leak on the other side of the air flow sensor plate then you will not have more fuel going into the engine and as such will have a lean mixture (lots of air but not enough fuel). How familiar are you with the CIS/E system? What you really wanna do is to reproduce the problem on demand by making the motor think it is cold when in fact it is at operating temp. If by doing this it goes up to the high idle you mentioned, then you know which circuit is being naughty. Also the later KE (KE3(?)) systems have a primitive fault code readout which is easy to do with the right equipment. Hopefully others will stop talking about you know what and help you out with your real MB problem. BTW is it a E300 or 300E, they are two very different cars with very different FI systems. E M wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
The reason you don't see the high RPM is because the tranny is determining engine idle, in this type of situation the car can still be driven but it is advisable to shift into N but not P while stationary and shift into gear with your foot off the brake, which puts less strain on the drive train. Coming to a stop put the box into N before braking. E M wrote: Hi John, yes, I'm sure you are right in that the added pressure is being transfered to the tranny, though of course you don't see the high rpm until the load is taken off the trans, and the car is parked. Funny enough, today, the problem seems to have been somewhat fixed, under similar driving conditions. I find these problems that come and go the most frustrating to trace! Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] high E300 gasser idle
Hi Tom, How easy it is to take apart? I ask this without even having looked at it yet. Will I be required to buy any new bits to re-assemble it all? Thanks again, Ed 300E On 19/08/07, Tom Hargrave [EMAIL PROTECTED] wrote: Look at the small rectangular box that's attached to the side of the fuel distributor. It contains a reed valve the reed may be cracked. Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of E M Sent: Sunday, August 19, 2007 5:55 PM To: Mercedes Discussion List Subject: Re: [MBZ] high E300 gasser idle I last check the 02 with a dwell meter off the test terminal on the inside fender about a month ago. At that time, it was fine. I am somewhat familiar with a CIS system, not an expert, but have kind of a working knowledge of most of the systems. Not sure about the temp sensor though, as I don't think the CIS on my old 911SC has one, but I could be wrong?? Where would I look for and test the temp sensor on my car? It's a 1988 W124 with the 3litre gas engine. I don't think my car has the system whereby you can pull any codes, but again, I could be wrong. Thanks again for your help. If I can't figure it out, I can always take it out into a field and shoot it! hee hee Ed 300E...the high idle isn't the problem, is all the slow traffic. lol :-) On 19/08/07, Hendrik [EMAIL PROTECTED] wrote: When is the last time you tested your O2 sensor, in a KE car the O2 sensor is the most important input when the car is at operating range. If it is telling the system that the exhaust is lean then the FI computer will try and dump more fuel into the motor. However if this is an intermittent problem I would be looking at temp sensor going wonky, which will tell the idle adjustment motor to up the amount of air going into the motor. Air leak? Doubtful as it would be a constant thing and a vacuum tube leaking (which can be intermittent) wouldn't cause this amount of high idle. Just to explain this a bit more, in order to have a high smooth idle of 1700-2000 you need both more air and fuel, just having one will make the car run like a dog. So if you have an air leak on the other side of the air flow sensor plate then you will not have more fuel going into the engine and as such will have a lean mixture (lots of air but not enough fuel). How familiar are you with the CIS/E system? What you really wanna do is to reproduce the problem on demand by making the motor think it is cold when in fact it is at operating temp. If by doing this it goes up to the high idle you mentioned, then you know which circuit is being naughty. Also the later KE (KE3(?)) systems have a primitive fault code readout which is easy to do with the right equipment. Hopefully others will stop talking about you know what and help you out with your real MB problem. BTW is it a E300 or 300E, they are two very different cars with very different FI systems. E M wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED
Re: [MBZ] high E300 gasser idle
If its bad then the only solution is a replacement. The reed vibrates, modifying the fuel distributor lower chamber, adjusting your fuel mixture. Thanks, Tom 256-656-1924 -Original Message- From: E M [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: 8/19/07 9:14 PM Subject: Re: [MBZ] high E300 gasser idle Hi Tom, How easy it is to take apart? I ask this without even having looked at it yet. Will I be required to buy any new bits to re-assemble it all? Thanks again, Ed 300E On 19/08/07, Tom Hargrave [EMAIL PROTECTED] wrote: Look at the small rectangular box that's attached to the side of the fuel distributor. It contains a reed valve the reed may be cracked. Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of E M Sent: Sunday, August 19, 2007 5:55 PM To: Mercedes Discussion List Subject: Re: [MBZ] high E300 gasser idle I last check the 02 with a dwell meter off the test terminal on the inside fender about a month ago. At that time, it was fine. I am somewhat familiar with a CIS system, not an expert, but have kind of a working knowledge of most of the systems. Not sure about the temp sensor though, as I don't think the CIS on my old 911SC has one, but I could be wrong?? Where would I look for and test the temp sensor on my car? It's a 1988 W124 with the 3litre gas engine. I don't think my car has the system whereby you can pull any codes, but again, I could be wrong. Thanks again for your help. If I can't figure it out, I can always take it out into a field and shoot it! hee hee Ed 300E...the high idle isn't the problem, is all the slow traffic. lol :-) On 19/08/07, Hendrik [EMAIL PROTECTED] wrote: When is the last time you tested your O2 sensor, in a KE car the O2 sensor is the most important input when the car is at operating range. If it is telling the system that the exhaust is lean then the FI computer will try and dump more fuel into the motor. However if this is an intermittent problem I would be looking at temp sensor going wonky, which will tell the idle adjustment motor to up the amount of air going into the motor. Air leak? Doubtful as it would be a constant thing and a vacuum tube leaking (which can be intermittent) wouldn't cause this amount of high idle. Just to explain this a bit more, in order to have a high smooth idle of 1700-2000 you need both more air and fuel, just having one will make the car run like a dog. So if you have an air leak on the other side of the air flow sensor plate then you will not have more fuel going into the engine and as such will have a lean mixture (lots of air but not enough fuel). How familiar are you with the CIS/E system? What you really wanna do is to reproduce the problem on demand by making the motor think it is cold when in fact it is at operating temp. If by doing this it goes up to the high idle you mentioned, then you know which circuit is being naughty. Also the later KE (KE3(?)) systems have a primitive fault code readout which is easy to do with the right equipment. Hopefully others will stop talking about you know what and help you out with your real MB problem. BTW is it a E300 or 300E, they are two very different cars with very different FI systems. E M wrote: Hi everyone, Was out yesterday and got caught in traffic. Drove from about an hour, with a lot of bumper to bumper traffic. When I came to a stop, as in end of trip, and put the car into Park, the idle climbed to between 1700-2000 rpm. At stop in traffic, it would idle about 1000 rpm, but it felt like it wanted to pull away, as in, required a little more pressure on the brakes to prevent becoming too friendly with the car infront. I suspect some kind of an air leak, but not sure just where to look. Kind of feels like a WUR stick up and keeping the idel high, but once the car is allowed to cool for an hour or so, the idle seems to be fine again. Oh, the day about about 75-80F with little humidity. Car also starts fine and idles in a normal range. Any thoughts?? Thanks in advance. Ed 300E ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http
