VW Code 08503
08503 Description And Summary : |
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This something to do with the intake camshaft timing reversing light, circuit open retarded timing position, the engine might refuse to start exhaust pressure sensor and valve for pump - jet: cylinder 9 (n305), circuit low input is the final reason of the code. |
08503 Possible Causes:
08503 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
- Cold Start Injector 1 Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 08503 Code
- Inspect all the connections fuel pump, mechanical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns