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2003 Pontiac Bonneville SLE 3.8L Poor Idle Quality, Cuts out, Stall, Misfire
Posted to GM Driveability on 12/22/2010 11 Replies

vehicle has a skip at idle and under load. injector service was done by someone else and it got worse. fuel trims are -1 to plus 2. mass air floe at 3.75gps map volts 1.25 at idle. no codes or freeze frame and now it cuts out at idle like someone shut off the ...

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car Vehicle Data

2003 Pontiac Bonneville SLE

VIN 1G2HX52K43
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Stall, Misfire
OccursCold, Hot, Under Load, on Accel, Idle
Message Closed

car Vehicle Data

2003 Pontiac Bonneville SLE

VIN 1G2HX52K43
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Stall, Misfire
OccursCold, Hot, Under Load, on Accel, Idle