2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

More electrical issues.

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Old Dec 19, 2011 | 04:42 PM
  #1  
Rotank's Avatar
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From: Arab, AL
More electrical issues.

So now my car is having some more issues. It jumps to 3400-3500 rpms as soon as it starts, and then it will back off a bit to about 2500 rpms, then settle down to 1500 rpms and start to surge from 1500-2000 and then smooth out for a few seconds around 1000 rpms, and then start surging again. Rinse repeat.

It even does this with the car in gear if you get under 2000 rpms it starts bucking from the rpm jumping back and forth.
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Old Dec 19, 2011 | 04:58 PM
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From: tulsa,ok.
Focus on setting the TPS to 1 volt on the Green/Red wire w/key to on and the engine fully warmed up.
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Old Dec 19, 2011 | 05:35 PM
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That has been done. I figured it out. The previous owner had redneck rigged the larger vacuum line coming off the intake duct and I had "fixed" it buy removing the duct tape and metal tape and then finding suitable vacuum line and some worm gear clamps. Well I guess the vacuum line was too large and was pulling way to much air because out of chance I squeezed it and the engine just totally started running correctly.

Better in fact than it ever had before (while I owned it anyways). So I rigged up a restrictor. The idle is now smooth @ 750 rpms and no more surge. The acclerated warmup squence is now functioning correctly, and hell my power steering computer finally shut the hell up.

The vacuum line still flows some amount of air. And its a totally redneck fix as well. But at least it does look better than the giant wad of tape that was on it.

Last edited by Rotank; Dec 19, 2011 at 05:37 PM.
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Old Dec 19, 2011 | 09:43 PM
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From: Boise, Idaho
haha I am going through the same bs with my car. less then half assed repairs all over it.
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