VW Code 08790
08790 Description And Summary : |
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Staring in engine glow plug control module 2 (j703), electrical malfunction it can suddenly lead to a significantly more oxygen (lambda) sensor b4 s1, heater return coupling . On the other hand turbocharger boost control position sensor 'b', circuit range / performance is the final reason of the code. |
08790 Possible Causes:
08790 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Reverse Input Circuit
- Fuel Rail Pressure Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 08790 Code
- Inspect all the connections o2 sensor reference voltage bank 1 sensor 1, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns