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I would concentrate on the IAC. as suggested try tapping on it._x000D_
at this point you might want to pull it out and clean it. also clean_x000D_
any passage out. reinstall. if the idle improves. replace the IAC_x000D_
The purge solenoid should not cause the idle issue. yi dont think the cannister purge valve is causing to much of an issue its just emmisions and its been on for like 4 years and hasnt done anything to the car. this problem just started out of nowhere last year. and i dont think its a vaccum leak.
it idles just fine around 800 its just when u accelerate very lightly and release the pedal it bogs down and tries to cut off and then catches itself.
this is my check engine light ; Code 26 (according to Haynes):_x000D_
> Quad Driver output fault_x000D_
>_x000D_
> Possible cause: The PCM detects an improper voltage level on the circuit that_x000D_
> is connected to the Quad Driver Module._x000D_
and this is what it effeI know the canister purge is listed as one of the possible causes but some of the other causes could cause issues with the idle or the shifting of the transmission such as the AC relay, cooling fan realy, or the Speedo input.
only reason i say cannister purge is based on reasearch and the fact that everything else eaither works or i have replaced. i narrowed it down to the egr solinoid and the purge solinoid. i replaced the egr the light came back. so i started reasearching an
i only bought the one part and have admitted my idea was flawed in just determining that the purge solinoid must be the issue. i bought the one part roughly 3 years ago it didnt turn of the cel light so i assumed it was the other solinoid never replaced i
No worries I’m just trying to put you on that path to diagnosis but you’re going to have to meet us half way and do some testing rather than assuming and replacing parts.
i did have the egr and cannister purge solinoid tested back when the light first showed up. the guy at the garaged ohmed both solinoids and he said in these exact words. I omhed both solinoids they ohmed out correctly but when the car heats up the solinoi
I would follow the troubleshooting for the code from the start to see if I could locate the cause of the failure.
i did the code stuff all the lights work the ac works when i turn the ac on the fan will kick on again tho im not sure what the shift light would be for me since i have an automatic. did i mention i hate obd1 such a pain. i will go thru it again when i ha
The coolant sensor when cold should tell the computer_x000D_
make the mixture rich. does the car run at normal operating temp?_x000D_
With the car in park. can you slowly rev the car without cutout or hesitation?_x000D_
heres a link. follow this procedure to see if any cod
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