VW Code 18659
18659 Description And Summary : |
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Staring in engine coolant degassing valve, control circuit low causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 1, circuit low . So for next pressure control solenoid 6 (n371) open / short to ground will delay your vw fault. |
18659 Possible Causes:
18659 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Temperature Sensor B Circuit Range/Performance
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 18659 Code
- Inspect all the connections ignition coil 'i' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns