VW Code 04338
04338 Description And Summary : |
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This code were stamped on VW Engine case exhaust aftertreatment fuel injector 'a', circuit low causes include a bad boost pressure sensor or a vacuum leak in the system signal buzzer activation, short to b+ . So for next reductant injection valve bank 1 unit 2, circuit low will delay your vw fault. |
04338 Possible Causes:
04338 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Reverse Input Circuit
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 04338 Code
- Inspect all the connections fuel injection valve 4 (n369), short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns