
1995 GMC Sonoma SL 4.3L MIL Lamp on
This truck came to me with the mil on and the three codes mentioned. When I clear the codes it can take as much as 500 miles for the mil to come back on. The owner has no drivabillity complaints. Yesterday I peeled the insulation back from the main wire harnes...
FIX posted 10/11/2004
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Message Closed w/Summary
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VIN | 56S8512738 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / TBI |
Emissions | Not OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Misc. | 4WD |
Trouble Codes
P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
P0401 | EGR System Insufficient Flow Detected |
P1442 | EVAP Vacuum Switch Circuit Malfunction |
Message Closed w/Summary
Vehicle Data
1995 GMC Sonoma SL
VIN | 56S8512738 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / TBI |
Emissions | Not OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Misc. | 4WD |
Trouble Codes
P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
P0401 | EGR System Insufficient Flow Detected |
P1442 | EVAP Vacuum Switch Circuit Malfunction |