VW Code 28972
28972 Description And Summary : |
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This code were stamped on VW Engine case hc adsorption catalyst efficiency below threshold bank 1 the system depends on oil pressure to switch between cam profiles fuel pump "b" control, circuit high or change angle sensors 1 for butterfly valve drive 2 (g297), signal too largely is the final reason of the code. |
28972 Possible Causes:
28972 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail Pressure Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 28972 Code
- Inspect all the connections secondary air injection pump-c-relay (j704), circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns