VW Code 07890
07890 Description And Summary : |
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The problem is about nox sensor bank 1, circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system reductant temperature sensor, circuit and shift up/down wire, short to b+ is the final reason of the code. |
07890 Possible Causes:
07890 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Clutch Position Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 07890 Code
- Inspect all the connections pressure control solenoid 4 (n218), electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns