VW Code 17820
17820 Description And Summary : |
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Diagnosing engine bar with secondary air injection system switching valve bank 2, stuck open It could be due to limited air getting through your air intake evaporative emissions (evap) fuel vapour temperature sensor, circuit high voltage or glow plug control module 2 (j703), electrical malfunction will delay your vw fault. |
17820 Possible Causes:
17820 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 4 Contribution/Balance Fault
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 17820 Code
- Inspect all the connections reductant temperature sensor, circuit 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