I had same symptoms a while back.
Mine was the Idle Air Solenoid.
You can remove it and clean the inside with brake cleaner and a small wire brush.
![]()
I had same symptoms a while back.
Mine was the Idle Air Solenoid.
You can remove it and clean the inside with brake cleaner and a small wire brush.
![]()
SilverBullet75
Formerly: '01 Ebony VXSTLTH
Now: '08 Saab 9-7x Aero 6.0L
Thank you, We diagnosed that this was the problem and I ordered a new one from Merlin at Isuzu for $67 so I hope that was it !
I found the large hose clamp has loosened on mine more than once.
The big one on the intake tube in the lower corner of the red box outlined in this picture.
I've replaced my Fuel regulator, TPS, and cleaned the IAC solenoid, all the cheaper stuff, but my problem still plagues me. One of these should cause a problem every time and not just once in a while?
I'm thinking of having a smoke test, to look for a Vacuum leak, AND buying a "test" or used MAF. I have finally had some codes other than low flow EGR.
I've had lean fuel on both banks. It's probably the MAF, but at $450. I might have to wait for a Tax return
Just a Guess, if your problem is NOT intermittant, it might be the Intake Manifold Gasket. You can spray carb cleaner at the base of both sides of the Intake Manifold. If your Gasket is Bad, the Idle will change and flunctuate !