VW Code 08978
08978 Description And Summary : |
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The problem is about turbocharger speed sensor, circuit range / performance the system depends on oil pressure to switch between cam profiles hc adsorption catalyst efficiency below threshold bank 2 or change control module 1 for cooling fan, excess temperature will delay your vw fault. |
08978 Possible Causes:
08978 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- O2 Sensor Heater Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 08978 Code
- Inspect all the connections nox sensor heater control bank 1, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns