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Idle relearn wont relearn


rockfangd

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ok i just put a new starter in my 94 cutlass and the battery had been disconnected for 2 days. so when i connected the battery i did the idle relearn procedure. Well during the first startup the engine idled up to 2600 in drive with the brake depressed. SES light on. then after 5 minutes shut it down, and second startup it idled normal for 5 minutes in drive. Now about every other startup it will rev up to 1300 and if i accelerate it climbs higher. so i have to shut it off and try to start it again which usually solves the problem. Today i went to try to start the car 7 times and every time it idled higher and higher, i finally had to settle at 1300 and a car that basically drove itself lol.

What to do? i tried the idle relearn a second time after i pulled the ecm fuse but no fix.

Any help is highly appreciated

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learning disability?

 

 

 

 

 

 

 

 

 

 

but seriously maybe TPS or IAC unplugged (dunno why it would be touched to do a starter but hey)

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well i always disconnect the battery when doing starters especially when it will be without one for a few days.

Iac and Tps are definately not unplugged and the car ran great before this. The 2 sensors are 7 months old

Find out why the light is on and go from there. Perhaps you unplugged something else.

the code stored was for a high engine idle, go figure lol

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Mine has too. It does it intermittently. Can't figure it out. The check engine light should be b.c the car has idled over 2000 RPM for more than a couple minutes

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nope, checked it :mrgreen:

Like i said when i start it and it revs high i have to shut it down and restart it.

Here is a question what do you do if the idle stays at 3000 rpm when you start the car to do the idle relearn procedure?. I wish it would stall rather than rev that high. it would be very bad putting the trans in gear at 3000 rpm

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If you havent checked the SES light, do that. When I did my LIM gaskets when I had the 3100 in there, I put everything back together and it idled at 3000RPM. I had to replace the IAC since it was sticking BADLY, then do an idle re-learn and that solved the problem.

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i did pull the code and it was a high idle code.

Today i pulled the iac and it was extended about halfway. so i cleaned it and retracted the pintle, reset the computer and it worked perfect, i started the car and put it in drive with chocks in front of the wheels and it is good so far, Knock on wood.

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  • 3 weeks later...

ok so it has been working perfect for the past 2 weeks but for some odd reason it has been acting up for the past few days. sometimes when i start it it idles around 1500 then i shut it pff and start it again and it runs fine :willynilly: Between the starter issue and this it takes me forever just to get where i am going lol

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Try cleaning your IAC one more time, and if it works this time, again, I would probly suggest in replacing it.

 

Also, check the O-ring on the IAC, it might be bad.

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