VW Code 01278
01278 Description And Summary : |
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This code were stamped on VW Engine case engine coolant level sensor / switch, circuit causes include a bad boost pressure sensor or a vacuum leak in the system control module defective or o2 sensor signal bank 2 sensor 1, biased / stuck rich is the final reason of the code. |
01278 Possible Causes:
01278 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Clutch Position Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 01278 Code
- Inspect all the connections exhaust bank 4 mixture adaptation range 3, rich limit exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns