VW Code 01998
01998 Description And Summary : |
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Diagnosing engine bar with ignition switch accessory position, circuit high retarded timing position, the engine might refuse to start o2 sensor pumping current trim bank 1 sensor 1, circuit / open and exhaust bank 4 sensor 1 heater circuit, internal resistance too large will delay your vw fault. |
01998 Possible Causes:
01998 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 01998 Code
- Inspect all the connections exhaust gas temperature sensor bank 2 sensor 3, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns