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2003 Chevrolet Silverado 1500 5.3L MIL Lamp on
hey guys have this 03 silverado mass air flow code p0101 keeps coming up and now p0420 cat eff code. i replaced intake gaskets full tune i drove this vechicle 80 miles than light came back on same codes i also replace fuel pump and all o2 sensors i really do n...
FIX posted 3/5/2009
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Message Closed w/FIX
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24 Replies Received
24 Replies Received
Related Documents & Media | VIN | 2GCEK19T03 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2003 Chevrolet Silverado 1500
| VIN | 2GCEK19T03 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video