
1997 Pontiac Firebird 3.8L MIL Lamp on
customer brought car to us with check engine light on and found dtc po420 catalyst efficiency low bank 1 looked at all parameters and look good cleared the code and let customer drive the car a few weeks later the car came back with light on again same dtc so ...
FIX posted 8/23/2004
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Message Closed w/FIX
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VIN | 2G2FS22K2V |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1997 Pontiac Firebird
VIN | 2G2FS22K2V |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |