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1998 Pontiac Sunfire GT 2.4L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 2/10/2003 6 Replies

thanks for checking this out! i have a code po300 (random cylinder misfire) misfire only seems to occur at idle. the misfire counters on all cylinders are about equal. there is not one cylinder higher than others that i can tell. fuel pressure is in specs. reg...

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Message Closed w/Summary

car Vehicle Data

1998 Pontiac Sunfire GT

VIN 1G2JD12T4W
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle
Message Closed w/Summary

car Vehicle Data

1998 Pontiac Sunfire GT

VIN 1G2JD12T4W
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle