Mike's Workshop Manuals
: Service manuals for every vehicle
Home
>>
Pontiac
>>
2009
>>
G5 Base, Standard
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls And Fuel - 2.2L - DTC P0351 To DTC P2544
>>
DTC P0420
>>
DTC Descriptor
DTC Descriptor
DTC P0420
Catalyst System Low Efficiency Bank 1