Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Having some serious idle issues

Thread Tools
 
Search this Thread
 
Old 12-04-2009, 04:19 PM
  #1  
On The Tree
Thread Starter
iTrader: (1)
 
W es 6's Avatar
 
Join Date: Feb 2008
Posts: 196
Likes: 0
Received 0 Likes on 0 Posts
Default Having some serious idle issues

Ok here's the situation: On cold starts, the car is perfect. My problem is mainly with hot-starts. On a hot-start, it has to hunt for a minute to find the idle, usually bouncing around 600 while it's hunting. While driving, if I come up to a stop sign and push in the clutch or drop it into neutral it will do one of two things: 1)idle will drop down to 500-600 or 2)idle will go UP to 2k+.

The issue only arises 50% of the time or so. The other 50% of the time, the car is perfect.

I have replaced my Throttle Position Sensor, Idle Air Control Valve, cleaned my MAF using MAF cleaner, reset the PCM, and done an Idle Relearn Procedure.

Anybody have any ideas? This is getting very frustrating.
Old 12-04-2009, 05:52 PM
  #2  
11 Second Club
iTrader: (1)
 
69LT1Bird's Avatar
 
Join Date: Sep 2007
Location: Lapeer, MI
Posts: 2,310
Likes: 0
Received 4 Likes on 4 Posts
Default

Have someone scan your O2 sensors to see if the are moving correctly.
Old 12-04-2009, 07:49 PM
  #3  
On The Tree
Thread Starter
iTrader: (1)
 
W es 6's Avatar
 
Join Date: Feb 2008
Posts: 196
Likes: 0
Received 0 Likes on 0 Posts
Default

That could make sense... about 2 weeks ago my car threw a code (P1133?) for improper switching...both banks... but then the code went away later on in the day. Could be something to check out further?




All times are GMT -5. The time now is 08:38 AM.