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2003 Hummer H2 6.0L Misfire
Posted to GM Driveability on 1/10/2008 9 Replies

this hummer look simple 6.0L, but i can figure out, i have miss fire only on bank 2, 2,4,6,8, have miss count, we been try put new spark plug, intake manifold gasket, it won't help, the injector test our good, have good blink , and good spark every cylinder, c...

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  Related Documents & Media  2003 Hummer H2

 
Message Closed w/FIX

car Vehicle Data

2003 Hummer H2

VIN 5GRGN23U83
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Run Poorly

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Hummer H2

VIN 5GRGN23U83
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Run Poorly

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0300Multiple Misfire Detected