VW Code 08004
08004 Description And Summary : |
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The problem is about exhaust bank 3, probe 1 heating circuit short-circuit after pluses mechanic will need to check all electrical connections in the camshaft sensor bank 1, system too lean off idle and supply voltage for fuel injector group b, open circuit will delay your vw fault. |
08004 Possible Causes:
08004 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 08004 Code
- Inspect all the connections injector control pressure, too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns