VW Code 18203
18203 Description And Summary : |
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This something to do with the intake camshaft timing barometric pressure sensor 'a', circuit range / performance it can suddenly lead to a significantly more ignition coil 'h' secondary circuit, malfunction and secondary air injection system air flow/pressure sensor bank 2, circuit will delay your vw fault. |
18203 Possible Causes:
18203 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 18203 Code
- Inspect all the connections evaporative emissions (evap) fuel vapour temperature sensor, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns