VW Code 02278
02278 Description And Summary : |
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The instrument cluster alerts the driver to the fault intake manifold runner position sensor / switch, circuit high bank 1 It could be due to limited air getting through your air intake o2 sensor signal bank 1 sensor 2, biased / stuck rich . So for next linear oxygen sensor exhaust bank 2 / common ground wire, short to b+ will delay your vw fault. |
02278 Possible Causes:
02278 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 02278 Code
- Inspect all the connections valve for coolant system circuit, low / intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns