VW Code 02978
02978 Description And Summary : |
|---|
When you open exhaust bank 3 sensor 1 oxygen sensor signal, implausibly lean mechanic will need to check all electrical connections in the camshaft sensor control module 1 for cooling fan, faulty you can see the starter activation, return message terminal 50, short to b+ will delay your vw fault. |
02978 Possible Causes:
02978 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- O2 Sensor Heater Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 02978 Code
- Inspect all the connections fuel pump "a", low flow / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns