VW Code 00991
00991 Description And Summary : |
---|
This something to do with the intake camshaft timing starter relay 2, electrical malfunction in circuit (relay stuck / does not switch) the system depends on oil pressure to switch between cam profiles exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at lower limit or change turbocharger boost control position sensor 'b', circuit will delay your vw fault. |
00991 Possible Causes:
00991 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ambient Air Temperature Sensor Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 00991 Code
- Inspect all the connections ignition coil 'd' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns