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1996 Pontiac Sunfire GT 2.4L Poor Idle Quality, Surge, Stall
Posted to GM Driveability on 6/4/2010 3 Replies

Hi, car starts fine, after 30 seconds it begins a surge at idle. Gets worse until car dies. Surging is caused by fuel trims being driven lean. Spraying fuel restores power/idle for a bit. Oxygen sensor reads over 1050mv except for short bit after decel. Actual...

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  Related Documents & Media  1996 Pontiac Sunfire GT

 
Message Closed w/FIX

car Vehicle Data

1996 Pontiac Sunfire GT

VIN 1G2JB12T8T
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SINGLE WIRE O2
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall
OccursAt Closed Loop

Trouble Codes

MAPMap codes setting. Readings all over when surging
Message Closed w/FIX

car Vehicle Data

1996 Pontiac Sunfire GT

VIN 1G2JB12T8T
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SINGLE WIRE O2
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall
OccursAt Closed Loop

Trouble Codes

MAPMap codes setting. Readings all over when surging