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2009 Chevrolet Impala LT 3.9L Hesitation, Surge, MIL Lamp on
2009 impala 3.9 surges at idle and while driving will stumble with codes for maf and tps issues p0101 p0121 p1101 and running rich p0172. Air filter housing was not attached so air was bypassing filter. Maf and honeycomb were dirty and appeared to have bee...
FIX posted 2/19/2021
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 2G1WC57M59 |
| Engine | 3.9 L / 6 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Fi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Surge, MIL Lamp On |
| Occurs | Cold, Cruise |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0121 | Throttle Position Sensor Range/Performance |
| P0172 | Fuel System Too Rich (Bank 1) |
| P1101 | ACM Crash Signal Received |
Message Closed w/FIX
Vehicle Data
2009 Chevrolet Impala LT
| VIN | 2G1WC57M59 |
| Engine | 3.9 L / 6 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Fi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Surge, MIL Lamp On |
| Occurs | Cold, Cruise |
Trouble Codes
| P0101 | Mass Airflow Sensor Range/Performance |
| P0121 | Throttle Position Sensor Range/Performance |
| P0172 | Fuel System Too Rich (Bank 1) |
| P1101 | ACM Crash Signal Received |
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