
1997 GMC C3500 Sierra SL 7.4L Excessive Emissions
As this is a heavy duty vehicle, it has to pass a tail pipe test in Oregon and failed due to high hydrocarbons. The check engine light was never a problem until they got in line for emissions testing. I verified that it had flat lined and replaced B2S2. I ...
FIX posted 4/15/2021
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Message Closed w/FIX
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VIN | 1GDJC34J6V |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions |
Occurs | Always |
Trouble Codes
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |
Message Closed w/FIX
Vehicle Data
1997 GMC C3500 Sierra SL
VIN | 1GDJC34J6V |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions |
Occurs | Always |
Trouble Codes
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |