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idle prob... and yes, I did read the stickys

Old 07-23-2007, 09:13 PM
  #11  
mattdel
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Default RE: idle prob... and yes, I did read the stickys

cleaning the IAC doesn't always work.

sometimes they are bad beyond a cleaning, and will always act up in one way or another.

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Old 07-23-2007, 09:14 PM
  #12  
Joel5.0
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Default RE: idle prob... and yes, I did read the stickys

ORIGINAL: creekrat

The computer seems to be increasing my idle for me. I reset the base idle at around 850 and when I pluged the IAC back in it jumped way up to like 1100. I was trying to get it down a bit to take the pressure off the torque converter but if I lower the idle any more with the IAC disconnected the motor wants to die on me
That is normal, if you don't allow the ECM to relearn its new TPS minimum position. Need to turn engine off, wait 30 seconds, reconnect IAC and restart engine.
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Old 07-23-2007, 09:23 PM
  #13  
creekrat
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Default RE: idle prob... and yes, I did read the stickys

matt- the IAC didn't look too bad, but I have another that I can swap out to see if it makes a difference or not. Is there any way to test these or do I need to replace it to se if that is the problem?

joel- I am getting no cel currently, I did run the koeo/koer tests a few weeks ago and the best I can remember the only thing that was showing up was a lean condition. I forget the code number, but I attributed it to the tb gasket leak I had. I haven't changed the fuel filter since I got it and I have no fp guage to see what my pressures are. Also, I haven't replace the o2 sensors either
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Old 07-23-2007, 09:35 PM
  #14  
Joel5.0
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Default RE: idle prob... and yes, I did read the stickys

ORIGINAL: creekrat

matt- the IAC didn't look too bad, but I have another that I can swap out to see if it makes a difference or not. Is there any way to test these or do I need to replace it to se if that is the problem?

joel- I am getting no cel currently, I did run the koeo/koer tests a few weeks ago and the best I can remember the only thing that was showing up was a lean condition. I forget the code number, but I attributed it to the tb gasket leak I had. I haven't changed the fuel filter since I got it and I have no fp guage to see what my pressures are. Also, I haven't replace the o2 sensors either
1. If no codes 12 and/or 13 show up in KOER....IAC is "controlling" idle within specs.

2. Lean or rich codes ARE a cause for idle problems......need to fix the codes to correct the idle fluctuations......even a code 67 (neutral/gear switch circuit failure) is in the list of possible causes for idle control issues.

3. KOEO/KOER self-tests are also "confirmation" procedures to make sure the codes have been corrected, need to ignore what happened a few weeks ago, and collect the current situation "data".

Just a thought.
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Old 07-23-2007, 09:42 PM
  #15  
creekrat
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Default RE: idle prob... and yes, I did read the stickys

what is the code 67 (neutral/gear switch circuit failure)? This sounds like it makes a little sence to me because it usually acts up worse when it is in gear driving at low rpm's
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