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1996 GMC Sonoma SLE 2.2L Misfire
Posted to GM Driveability on 8/28/2007 5 Replies

Vehicle has a misfire on #1 cylinder all the time. Checked spark, good, checked fuel pressure, good. Engine vacuum is low, 17.5"hg at idle, 19.5"hg at 2000 rpm.

Swapped wires, coils & plugs, miss still on #1. Swapped fuel injector, miss still on #1.

Did a c...

5 Replies Received (View Replies)

  Related Documents & Media  1996 GMC Sonoma SLE

 
Message Closed w/FIX

car Vehicle Data

1996 GMC Sonoma SLE

VIN 1GTCS194XT
Engine2.2 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
Message Closed w/FIX

car Vehicle Data

1996 GMC Sonoma SLE

VIN 1GTCS194XT
Engine2.2 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected