VW Code 00251
00251 Description And Summary : |
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This code were stamped on VW Engine case secondary air injection system air flow/pressure sensor bank 2, circuit mechanic will need to check all electrical connections in the camshaft sensor oxygen (lambda) sensor b2 s3, signal shorted to heater circuit . So for next vehicle speed sensor 'b', range / performance will delay your vw fault. |
00251 Possible Causes:
00251 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Cylinder 4 Contribution/Balance Fault
- Glow Plug/Heater Circuit 'A' Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 00251 Code
- Inspect all the connections intake manifold runner control, circuit low bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns