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1998 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
This happens to be my son's vehicle (of course). This vehicle backfires just about everytime it starts (that's when the symptons first occured). It is running excessively rich. Injector on time varies between 3.8 to 4.1 ms. MAP is at 1.68 at idle. Fuel trim wa...
FIX posted 3/31/2006
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13 Replies Received
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Related Documents & Media | VIN | 1GNDT13W5W |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0108 | Manifold Air Pressure Sensor Circuit High Voltage |
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1998 Chevrolet Blazer
| VIN | 1GNDT13W5W |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0108 | Manifold Air Pressure Sensor Circuit High Voltage |
| P0300 | Multiple Misfire Detected |
Video