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Surging Idle and Acceleration: Fuel or Air problem? 200 1989

Hello All,
I can't figure this one out. I'd appreciate some help. I'm trying to get home for Thanksgiving without breaking down.

Sometimes I have a surging idle, sometimes its okay. Sometimes the car surges/hesitates on acceleration, sometimes okay. Sometimes knocking uphill. The car has never stalled, always starts. I want to say its worse at 1/2 a tank of gas and below - but I'm not 100%.

Conditions:
Check Engine Light On: LH2.4
OBD - 1-1-3 = fault in fuel injectors, 2-3-1 = rich or lean at idle

New Battery, recent tune-up. New Fuel filter - drastically improved ride - but didn't change OBD codes. Swapped my AMM with a junk part(due to failure code - also chaned air box thermostat), O2 sensor, Air filter, air intake elbow and accordian, cleaned the throttle body and flame trap. Listened to all injectors - all are clicking and have correct resistance. Removed vaccuum hose from pressure regulator - RPMs adjusted.

Both fuel pumps are running although I don't hear either unless the car is running - then I hear both. Jumping fuses 4 and 6 turns both pumps on.

Just replaced both motor mounts and tranny mount due to near catastrophic failure - loud noises from front end while going over any size bump.

Suggestions - or questions for clarification are welcome. Anything would be great.

Thanks guys,
Niko






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New Surging Idle and Acceleration: Fuel or Air problem? [200][1989]
posted by  Niko  on Sun Nov 21 19:51 CST 2004 >


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