Progress! That's awesome! I don't remember the wire colors anymore, but yes, one of the wires to the O2 sensor is the heater wire. Hopefully, once you set the timing, it will improve things. However, until you get the O2 sensor hooked up correctly, it isn't going to run right. But at least you've resolved a lot of your issues. I'm happy for you.
~Holland On Mar 19, 2016 01:38, "damac2004" <damac2...@sbcglobal.net> wrote: > well i capped off one hole with a bolt/washer and the other with a thick > plate and gasket. turned the key once to hear the pump prime and then > tried to start the car and it started right up and idled a bit less than > 900 rpm i think. > > wow do i feel stupid. > > i got various little things to fix after poking around but my next problem > is the cat/02 sensor. i'm going to start fresh with my new cat and 02 > sensor at this point. i assumed the wiring was ok but noticed some > previous owner electrical tape and there are numerous wires tied together > into a bundle thats hooking up to a ground on the passenger firewall. this > includes a single wire that is zip tied to the outside of the loom coming > from the drivers side. halfway it turns from black to brown with vw > plastic connectors. > > seems a little goofy at face value to have a single wire shoot all the way > over there for ground right where all those wires meet. i have to look > closer but i think something is screwed up if im reading right the 2nd 02 > sensor connector is a heater wire NOT ground? the other harness with 2 > white wires goes into the loom. > > i have a feeling car isn't even getting a signal from 02 sensor so i need > to get that straight before installing new one. > > i had the distributor at the old setups marks, i will have to time it > tomorrow i couldn't actually see the marks well when trying the timing > light in the dark tonight. car runs and is revving out with the stock > chip/cams, etc. but i noticed right away when i stab the throttle and it > comes off the idle switch there was a slight gurgle and then it revs out > but is reacting to pedal. i'm hoping it needs to be timed and that will > help. > > On Wednesday, March 16, 2016 at 7:56:36 PM UTC-7, damac2004 wrote: >> >> oh boy i am feeling stupid and think i have found the smoking gun here. >> >> is it possible that having 2 open holes on the back of the intake >> manifold made the car act this way? >> >> this is not a california chasis so no egr stuff. when i pulled the euro >> manifold one hole had a bolt stuck through it with rtv and another hole was >> held by bolts and gasket. >> >> when i was transferring everything over to the stock manifold i remember >> poking down the hole with brake cleaner hose and hit what i thought was >> solid wall on each. at the time never seeing egr stuff assumed it maybe >> would be drilled out for a car that needed that hardware. >> >> i had filled the holes up with brake cleaner with that side up and don't >> think i paid close enough attention so this whole time it was installed on >> the car like that. >> >> tonight as i went to transfer the old parts back on as my last hope >> effort i noticed some leakage when spraying brake cleaner and a light bulb >> went off. so with those holes up if i spray one hole it fills the other >> hole up. if you leave the manifold sit the level of fluid just sits there. >> when i went to tilt sideways one way nothing happened but leaking out the >> top. when i tilted the other way 2 of the runners leaked the fluid out. >> >> i don't know these cars at all. since the car wasn't running right i >> never wanted to let it run long since it wasn't acting like a real car. my >> mom was watching and said i see some smoke and it sounds funny but of >> course i told her its just stuff burning off and that it wasn't running >> right. couldn't really take a chance to look or feel closer. >> >> i have seen people mention these cars can run crappy with vac leaks and >> they don't run without the intake tubes attached? i'm hoping this is what >> it was. going to make some block off plates and gasket to seal those 2 >> holes up tight and then install all the old parts on it and hope like magic >> its back to normal and then i can smog it. >> >> On Tuesday, March 1, 2016 at 10:41:38 AM UTC-8, hollandphillips wrote: >>> >>> I just thought of something. Any chance the fuel in the tank could be >>> contaminated? Since I think you said you're in California, the fuel here is >>> probably the worst in the U.S.. With the ethanol and other crazy additives >>> that's in it, it has an extremely short shelf life. >>> An other thing, I wonder how the fuel pumps are? If either the main or >>> transfer pump aren't healthy, that can cause weird running problems. The >>> easiest way to check the pumps is to disconnect the input line at the fuel >>> distributor and have someone turn on the ignition for a second. You should >>> get a really healthy stream of fuel. As I recall, the main pump operates at >>> around 50psi, give or take. >>> We're reaching for straws at this point, so the more you check that >>> looks correct, that's fewer possibilities to deal with. >>> >>> ~Holland >>> On Mar 1, 2016 10:15, "Larry Velez" <la...@sinu.com> wrote: >>> >>>> I just checked and Marren is still in business and still rebuilding >>>> injectors of all ages: >>>> >>>> >>>> >>>> https://www.injector.com/ >>>> >>>> >>>> >>>> https://www.facebook.com/MarrenFuelInjection/ >>>> >>>> >>>> >>>> -Larry >>>> >>>> >>>> >>>> *From:* mk2...@googlegroups.com [mailto:mk2...@googlegroups.com] *On >>>> Behalf Of *Holland Phillips >>>> *Sent:* Tuesday, March 1, 2016 12:56 PM >>>> *To:* mk2...@googlegroups.com >>>> *Subject:* Re: [mk2-16v] how do i find out what engine i have? >>>> >>>> >>>> >>>> I agree with you Chad. At this point, I would perform a compression >>>> test. If that looks good, then I'm at a loss as to where to go next. Maybe >>>> look at the injectors. It's probably easier and cheaper to try and find >>>> some used, hopefully known good injectors, even if it's only one. Then you >>>> could swap them one at a time and see if you find a bad one. There are a >>>> couple of companies that do balancing and blueprinting of Motronic >>>> injectors. I had mine done by Marren Motorsports back in the mid '90's, so >>>> I don't know if they're still in business. They could perform just testing >>>> to check for flow and pattern. >>>> Beyond that, I just don't know. >>>> >>>> ~Holland >>>> >>>> On Feb 29, 2016 18:21, "Chad Rebuck" <chadr...@gmail.com> wrote: >>>> >>>> The key in the cam gear is only there for the alignment until the bolt >>>> is tightened. It doesn't really hold the cam gear in place once the bolt is >>>> tightened. Same for the crank pulley too. The key can break if the bolt >>>> gets loose enough for it to turn. >>>> >>>> I'm just curious how the engine sounds as you said it ran smoother for >>>> a short while when you opened up the throttle. >>>> >>>> I'm about out of ideas. If you take it to a shop the first thing >>>> they're going to do is check the timing again and check the compression I >>>> bet. >>>> >>>> On Feb 29, 2016 9:05 PM, "damac2004" <dama...@sbcglobal.net> wrote: >>>> >>>> im afraid to run this car for long but what would be better, a video >>>> from the engine bay or tailpipe? >>>> >>>> >>>> >>>> i didn't change the plug order, etc. when doing all this work, just >>>> popped the distributor off and layed it in engine bay with battery out. >>>> >>>> >>>> >>>> the cam i took off the car did have the cam gear tooth broken but it >>>> didn't move based on how the keyway lined up, is that surprising? i bought >>>> another cam pulley off a vortex member and he sold it to me the exact same >>>> way and told me every one he has taken off came the same way? i thought >>>> that was nuts but have seen through forums searching it has happened to >>>> others. i got a new cam pulley while doing all this work and its still >>>> fine. and i have to assume the crank is fine as well since it was good >>>> running and all the marks are lining up correctly still. >>>> >>>> On Monday, February 29, 2016 at 5:56:38 PM UTC-8, chadrebuck wrote: >>>> >>>> Also check that the cam sprocket is located in the right place on the >>>> cam. If the tooth broke off of the cam gear then it could rotate causing >>>> the timing to be incorrect. Did you mention that the cam sprocket had a >>>> broken locating tooth? >>>> >>>> On Feb 29, 2016 7:47 PM, "Chad Rebuck" <chadr...@gmail.com> wrote: >>>> >>>> Changing the cams out will be a waste of time. What did you do to >>>> verify the spark plug wire order? Can you take a video of how the car is >>>> running? >>>> >>>> On Feb 29, 2016 7:39 PM, "damac2004" <dama...@sbcglobal.net> wrote: >>>> >>>> i put the techtronics chip back in and put the older throttle body back >>>> in with no changes in how the car is acting. i also checked grounds and >>>> ran some extras to the bundle on head, etc. just in case. >>>> >>>> >>>> >>>> my issues make for a useless car, no way it could be driven. so my >>>> problems seem way beyond the little tuning people do to get their cars >>>> running right. this car ran and drove when i got it with very old and worn >>>> injector seals and numerous vacuum lines with holes in it. it ran its best >>>> when hot and on the throttle never gave out on me or died. although it had >>>> goofy issues with starting consistently and idling a little >>>> high/rough/inconsistent at times. >>>> >>>> >>>> >>>> and i see people mention 02 sensors and cts making for a rough running >>>> car possibly but again this is way worse than that. >>>> >>>> >>>> >>>> i'm stuck so tomorrow i am going to put the old cams, etc. back on and >>>> cross my fingers. >>>> >>>> On Saturday, February 27, 2016 at 8:41:59 PM UTC-8, hollandphillips >>>> wrote: >>>> >>>> Since the Mk 2 cars were all pre OBD, they had only one O2 sensor which >>>> was mounted before the cat. So the ECU never knew if the cat even existed >>>> or was functioning properly. Now that I think about it, if the O2 sensor >>>> has no output, or was not connected, the ECU will go into "safe mode", >>>> which is full rich. Hence your poor fuel mileage. I also recalled that the >>>> O2 sensor on the Motronic cars is a three wire type, which means it has a >>>> heater, so its output will become valid more quickly in order to reduce >>>> emissions. All this is bringing back memories of all the 16V trivia I >>>> acquired over the years. 😐 >>>> >>>> ~Holland >>>> >>>> On Feb 27, 2016 20:00, "damac2004" <dama...@sbcglobal.net> wrote: >>>> >>>> i could test compression but it it did drive fine before i tore it all >>>> apart, after this incident. >>>> >>>> this car had no cat so 02 sensor was laying underneath airbox this >>>> whole time :). >>>> >>>> i thought the car stunk and i got bad mileage but this car was fun to >>>> drive. i was beating on itand it pulled when i stomped on it all the time >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "MK2-16v" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to mk2-16v+u...@googlegroups.com. >>>> To post to this group, send email to mk2...@googlegroups.com. >>>> Visit this group at https://groups.google.com/group/mk2-16v. >>>> To view this discussion on the web visit >>>> 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