Re: [MBZ] Failed Emissions Inspection
having a 93 E300 2.8 that just failed emissions in NJ. Is there any way to check a catalytic converter to see if it is working or not? I am about to check for vacume leaks and change the 02 sensor. While I am at it is there any preliminary checks I can do? Robb NJ 93 300E,85 380SL,81 300D89 300SEL ___ 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] Failed Emissions Inspection
There is no self diagnostic function on the catalytic converter, easy thing is to plug your car into a computer and see what the go is. You can spend 's on replacing stuff, only to find that a wire was loose somewhere. The series 124's have quite a sophisticated self diagnostic system and overall it is more cost effective to pay a equipped Merc workshop to analyze your car, rather than spending money on replacing serviceable parts. Perhaps Rusty could let you know how much a cat for your car is. Generally if everything else checks out fine, then the catalytic converter is thought to be the trouble of high emissions. I take it you are running the correct grade of fuel for your car? Robb Taglieri wrote: having a 93 E300 2.8 that just failed emissions in NJ. Is there any way to check a catalytic converter to see if it is working or not? I am about to check for vacume leaks and change the 02 sensor. While I am at it is there any preliminary checks I can do? Robb NJ 93 300E,85 380SL,81 300D89 300SEL ___ 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] Failed Emissions Inspection
Robb, the air pump only operates for a short time when the engine is cold so that shouldn't be an issue if your MB is really warmed up at the time of the test. It's always a good idea to be sure the engine is very warm for a emissions test. John On 9/17/07, Robb Taglieri [EMAIL PROTECTED] wrote: I have a 1993 300E 2.8 with about 122,000 miles on it. It recently went for NJ emissions testing and failed. My HC tested at 150 instead of 100. I am told that the cause of this is not the normal tune up but rather that something is defective. the car had a tune up in the last 12,000 miles and I was wondering if anyone has any suggestions. Also want to mention that for the first 30 seconds or so I get a tistt, tistt sound from the air pump. After 20 -30 seconds it just stops making the noise. It is not a gradual fade but an instant turn off of the noise. I'm not sure if one is related to the other. Robb T. South Jersey ___ 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
[MBZ] Failed Emissions Inspection
I have a 1993 300E 2.8 with about 122,000 miles on it. It recently went for NJ emissions testing and failed. My HC tested at 150 instead of 100. I am told that the cause of this is not the normal tune up but rather that something is defective. the car had a tune up in the last 12,000 miles and I was wondering if anyone has any suggestions. Also want to mention that for the first 30 seconds or so I get a tistt, tistt sound from the air pump. After 20 -30 seconds it just stops making the noise. It is not a gradual fade but an instant turn off of the noise. I'm not sure if one is related to the other. Robb T. South Jersey ___ 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] Failed Emissions Inspection
On 9/17/07, Robb Taglieri [EMAIL PROTECTED] wrote: I have a 1993 300E 2.8 with about 122,000 miles on it. It recently went for NJ emissions testing and failed. My HC tested at 150 instead of 100. I am told that the cause of this is not the normal tune up but rather that something is defective. the car had a tune up in the last 12,000 miles and I was wondering if anyone has any suggestions. High HC means unburned fuel---the engine is running too rich. A lot of things can cause this, but the first to check for is a vacuum leak---could be as simple as a disconnected line somewhere. (Low vacuum makes the injection computer think you're stomping on the accelerator all the time, so it dumps more gas in than necessary.) Alex Chamberlain '87 300D Turbo ___ 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] Failed Emissions Inspection/ideas
In a message dated 9/17/2007 8:36:03 A.M. US Mountain Standard Time, [EMAIL PROTECTED] writes: I have a 1993 300E 2.8 with about 122,000 miles on it. It recently went for NJ emissions testing and failed. My HC tested at 150 instead of 100. I am told that the cause of this is not the normal tune up but rather that something is defective. the car had a tune up in the last 12,000 miles and I was wondering if anyone has any suggestions. Also want to mention that for the first 30 seconds or so I get a tistt, tistt sound from the air pump. After 20 -30 seconds it just stops making the noise. It is not a gradual fade but an instant turn off of the noise. I'm not sure if one is related to the other. Robb T. South Jersey Robb, Make sure the engine is coming up to design temperature. A bad thermostat, or bad engine temp sensor would leave the engine running rich if it thinks it is still warming up. On cold (rare) days at the smog place, I will request they remove the roll around fan as it can knock temperatures down some. I would consider changing out the O2 sensor, which if original, is probably due. If you have a previous history of the car running very rich, the catalytic converter could be shot too. Never go to an emissions test with a full tank of gas. The purge cannister could be venting raw gas into the engine. Just my .02 Jim Friesen Phoenix AZ 79 300SD, 264 K miles 98 ML 320, 151 K miles ** See what's new at http://www.aol.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
