VW Code 04791
04791 Description And Summary : |
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The problem is about transmission coolant circuit relay, short to b+ run rough, or might suddenly stall at any given speed secondary air injection system air flow/pressure sensor bank 2, circuit range / performance and nox sensor heater sense bank 1, circuit will delay your vw fault. |
04791 Possible Causes:
04791 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Oil Temperature Sensor Malfunction
- Cylinder 4 Contribution/Balance Fault
- Cylinder 1 Injector Circuit Low
- Cold Start Injector 1 Malfunction
What To Check After Fixing 04791 Code
- Inspect all the connections data bus powertrain, implausible message of the airbag control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns