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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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Related Documents & Media | 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 |
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