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2003 Audi A4 3.0L Poor Idle Quality, Surge, Stall
Engine would rev up to 2,500rpm, after approx. 2 mins
would cut out, after restart would run erratic again until
it warms up, excessive smoke during erratic idle due to
over fueling.
FIX posted 7/7/2016
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Related Documents & Media 
| VIN | WAUZZZ8E43 |
| Engine | 3.0 L / 6 cyl / GAS |
| Delivery | Fuel Injection / MPI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Surge, Stall |
| Occurs | Intermittently |
Trouble Codes
| P0102 | Mass Airflow Sensor Circuit Low Voltage |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
| P0507 | Idle Speed Control System Higher Than Expected |
| P1103 | Mass Airflow Sensor Signal Higher Than Expected |
| P1108 | BARO Pressure Sensor Circuit High Voltage |
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Vehicle Data
2003 Audi A4
| VIN | WAUZZZ8E43 |
| Engine | 3.0 L / 6 cyl / GAS |
| Delivery | Fuel Injection / MPI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Surge, Stall |
| Occurs | Intermittently |
Trouble Codes
| P0102 | Mass Airflow Sensor Circuit Low Voltage |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
| P0507 | Idle Speed Control System Higher Than Expected |
| P1103 | Mass Airflow Sensor Signal Higher Than Expected |
| P1108 | BARO Pressure Sensor Circuit High Voltage |
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