P0103 Diagnostic Trouble Code Discussion for February 2015
MAF Sensor Circuit High Frequency
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| Help Request | Posted | |
| 2004 Audi A4 1.8L MIL Lamp on VIN: WAUJC68E94 P0103: Mass or volume air flow a circuit high input. Customer states mil light is on and runs sluggish Found MAF plug harness has no ignition 12v power and is shorted to ground all the time. When key on, it has 5v ref power from ecm and ground from ecm. All fuses are good. Without 12v power MAF will not work rig... |
February 17, 2015 |
