High Idle
Thread Starter
Instructor
Joined: Mar 2003
Posts: 120
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From: Leesburg in
High Idle
I replaced the IAC, and checked for air leaks, but cannot get my 90' L98 to Idle down. I've shorted the A & B connectors on the ALDL and waited at least 30 seconds before disconnecting the IAC. However, when I fire her up, she idles around 1500 and will not go down. With the IAC connected, it's around 1200 in park. Could my EGR be bad? :smash:
Thread Starter
Instructor
Joined: Mar 2003
Posts: 120
Likes: 0
From: Leesburg in
Re: High Idle (scorp508)
The TPS is not Adjustable, and last OHM reading was within tolerance. It seems that the IAC is just not extending as it should. (or at all) But, without a scanner, I can't prove this. I may just have to wait until my mechanic buddy can take a look at it. The TB idle screw can be backed out all the way, and the idle still is way high.
[Modified by lakerat, 11:29 AM 9/2/2003]
[Modified by lakerat, 11:29 AM 9/2/2003]
