Ok Chris,
There's one of three conditions that can cause this:
1) TB is dirty. Remove TB and clean throttle blades and make sure blades
aren't sticking. Clean around MAP sensor and TPS. Remove and clean the
pintle on the IAC without twisting it.
2) Check around intake manifold for any vacuum leaks including power brake
booster line.
3) If you checked everything else and still have a problem you may need a
new IAC.
Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Chris DeCrease
Sent: Friday, April 13, 2001 9:59 AM
To: DML
Subject: DML: CE Light update: Code 25
Ok, the code is 25. According to the DML page, this means, A shorted or open
condition detected in one or more of the idle air control motor circuits.
or Actual idle speed does not equal target idle speed. This is from the '96
FSM. Could someone check their '97 FSM to see if it is the same?? I
appreciate it. Also, when the truck idles, I notice that it kind of bounces
between about 600 RPM and 1000 RPM.This only happens when the engine is hot.
It idles fine after a cold start. A consistant 800 or 900 RPM. All and any
advise is appreciated. That CE light is annoying. TIA.
Chris DeCrease
97 V6 Sport 4x4
2000 Pontiac TA
2001 Suzuki GSX-R (on the way)
www.angelfire.com/extreme2/chrisnlisa00
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:01:02 EDT