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2010 Chevrolet Express 2500 4.8L Misfire, MIL Lamp on
even pulled valve cover to check valve springs - did cyl leak down - only 10% leak on #1 . did see tsb for valve cover. but blocked vacuum to it still had miss. did cylinder balance test - #1 did not change. used tech 2 to perform injector balance test also. a...
Summary posted 9/29/2014
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Related Documents & Media | VIN | 1GCZGFBA0A |
| Engine | 4.8 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0121 | Throttle Position Sensor Range/Performance |
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
Message Closed w/Summary
Vehicle Data
2010 Chevrolet Express 2500
| VIN | 1GCZGFBA0A |
| Engine | 4.8 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0121 | Throttle Position Sensor Range/Performance |
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
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