VW Code 03458
03458 Description And Summary : |
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The problem is about turbocharger speed sensor, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system reductant injection valve bank 1 unit 1, circuit low also linear oxygen sensor exhaust bank 3 / common ground wire, open circuit will delay your vw fault. |
03458 Possible Causes:
03458 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 4 Contribution/Balance Fault
- Clutch Position Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 03458 Code
- Inspect all the connections evaporative emission system leak detection pump sense, circut high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns