help:idle affected by EGR?
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,477
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help:idle affected by EGR?
ok we have changed the TPS (it was bad) the Idle Air control and the car has relstively new plugs, rotor and cap (less then 10k) my car still wants to idle at 1000 rpm in park and 800-900 in drive. I have reset the calibration of the TPS per the shop manual (using a multitester) and it is reading within the given range.
It idles fine (although high at 800-900 rpm)then skips a beat then idles fine then skips a beat in 1 minute intervals or so. this problem has just started up when I went back to school. It sat for most of the summer, but when driven it was fine. When I started to drive it to school it developed this problem.
I have been told that it might be a bad EGR valve. Is this possible? and do you have to take off the plenum to get to it? (it states that you do in the manual, but just wondering if there is an easier way. :D )
thanks for any advise on this.
ALso tried to reset the idle per the technique in the tech tips section, but couldn't seem to bring the idle down at all with the screw. The cable never relaxed the metal piece to the screw.)
It idles fine (although high at 800-900 rpm)then skips a beat then idles fine then skips a beat in 1 minute intervals or so. this problem has just started up when I went back to school. It sat for most of the summer, but when driven it was fine. When I started to drive it to school it developed this problem.
I have been told that it might be a bad EGR valve. Is this possible? and do you have to take off the plenum to get to it? (it states that you do in the manual, but just wondering if there is an easier way. :D )
thanks for any advise on this.
ALso tried to reset the idle per the technique in the tech tips section, but couldn't seem to bring the idle down at all with the screw. The cable never relaxed the metal piece to the screw.)
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: help:idle affected by EGR? (Lv2Driv)
Put a vacuum gauge on the plenum to see if you have any air leaks.
There is an EGR diagnostic test on my site.
To check for an ignition problem with that miss, clip a timing light onto each wire in turn and see if the miss coincides with a missed flash.
There is an EGR diagnostic test on my site.
To check for an ignition problem with that miss, clip a timing light onto each wire in turn and see if the miss coincides with a missed flash.
