VW Code 15990
15990 Description And Summary : |
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The instrument cluster alerts the driver to the fault secondary air injection system control 'b', circuit high it can suddenly lead to a significantly more ignition switch run position, circuit high or fuel mixture control adjustment range 2, lower limit not reached is the final reason of the code. |
15990 Possible Causes:
15990 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 15990 Code
- Inspect all the connections 'b' rocker arm actuator system, stuck on
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns