VW Code 28948
28948 Description And Summary : |
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When you open charge pressure fan relay (j712), short to ground+ retarded timing position, the engine might refuse to start secondary air injection pump-c-relay (j704), circuit open circuit . So for next fuel supply heater, control circuit / open is the final reason of the code. |
28948 Possible Causes:
28948 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Reverse Input Circuit
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 28948 Code
- Inspect all the connections supply voltage for fuel injector group a, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns