
1999 Chevrolet Express 2500 5.7L Excessive Emissions, Hesitation, Cuts out, Poor Fuel Economy
at idle this van runs great. engine will rev just fine on light excell, but med. to heavy excell it will not rev over [...] rpm. backfires through intake. falls flat on its face. fuel pressure in [...] and 55psi when acting up. cam retard at 0- +1 degree. when...
FIX posted 3/26/2008
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Message Closed w/FIX
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VIN | 1GCGG25R8X |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Hesitation, Cuts Out, Poor Fuel Economy |
Occurs | Always, on Accel |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage |
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |
Message Closed w/FIX
Vehicle Data
1999 Chevrolet Express 2500
VIN | 1GCGG25R8X |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Hesitation, Cuts Out, Poor Fuel Economy |
Occurs | Always, on Accel |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage |
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |