what's correct idle speed
Thread Starter
8th Gear
Joined: Apr 2008
Posts: 7
Likes: 0
what's correct idle speed
What's the correct idle speeds for an '86 auto?? Engine now sucks more air since 
I installed an Airaid TBS w/ new gaskets, used carb cleaner to cleanup the TB & removed the MAF screens which now resulted in a higher idle speed at startup. I disconnected the battery to reset the ecm but idle is still running high @ 700-800). I need some help to restore idle to within normal specs.
I installed an Airaid TBS w/ new gaskets, used carb cleaner to cleanup the TB & removed the MAF screens which now resulted in a higher idle speed at startup. I disconnected the battery to reset the ecm but idle is still running high @ 700-800). I need some help to restore idle to within normal specs.
Last edited by goopysteve; Apr 18, 2008 at 01:21 AM.
Intermediate
Joined: Aug 2004
Posts: 42
Likes: 0
Idle set
Can you read trouble codes? IAC-TPS.
Try manually with engine operating temp, TB set screw.
Check for vacumm leak.
Can you reset IAC?
Can you reset TPS?
Guessing idle 550-600.
Bin change if you have the equipment or know someone who does
Just some thoughts.
Later
Try manually with engine operating temp, TB set screw.
Check for vacumm leak.
Can you reset IAC?
Can you reset TPS?
Guessing idle 550-600.
Bin change if you have the equipment or know someone who does
Just some thoughts.
Later
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Specs are 100 +/- rpms from Targeted in PARK/NEUTRAL; 50 +/- rpms from Targeted in Drive. Until you hook up a Scanner, you won't know anything - so do that and repost with at least the following info: Engine Temp, TPS, Actual RPM, Targeted RPM, IAC Counts, A/C signal, PARK/Neutral Switch signal.
