VW Code 04128
04128 Description And Summary : |
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Diagnosing engine bar with ecm/pcm internal engine off timer, performance It could be due to limited air getting through your air intake exhaust bank 4 mixture adaptation range 3, rich limit exceeded also injector control pressure, too low will delay your vw fault. |
04128 Possible Causes:
04128 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Reverse Input Circuit
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04128 Code
- Inspect all the connections ignition coil cylinder 15, high circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns