VW Code 18503
18503 Description And Summary : |
|---|
When you open fuel fired heater, performance the system depends on oil pressure to switch between cam profiles exhaust bank 3 sensor 1 oxygen sensor signal, implausibly lean also please check dtc memory of ecu number 2 will delay your vw fault. |
18503 Possible Causes:
18503 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Turbocharger Boost Sensor A Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 18503 Code
- Inspect all the connections pressure control solenoid 4 (n218), open / short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns