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2003 GMC Yukon Denali 6.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on
this denali is killing us. after a simple tune up and mass air flow sensor replacment and replacing the intake manifold assembly (burned through from shorted knock sensor harnness) causing vacuum leak. we replaced both knock sensors amd harness from [...] did ...
Summary posted 3/8/2010
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Related Documents & Media | VIN | 1GKEK63U43 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Under Load, on Accel, Intermittently |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0327 | Knock Sensor Front Circuit Low Voltage |
| P0332 | Knock Sensor Rear Circuit Low Voltage |
| PP300 | multiple cylinder misfires |
Message Closed w/Summary
Vehicle Data
2003 GMC Yukon Denali
| VIN | 1GKEK63U43 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Under Load, on Accel, Intermittently |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0327 | Knock Sensor Front Circuit Low Voltage |
| P0332 | Knock Sensor Rear Circuit Low Voltage |
| PP300 | multiple cylinder misfires |
Video