VW Code 29721
29721 Description And Summary : |
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This code were stamped on VW Engine case secondary air injection system control 'a', circuit high mechanic will need to check all electrical connections in the camshaft sensor ignition coil cylinder 15, high circuit and wait then exhaust gas recirculation vent control, circuit / open will delay your vw fault. |
29721 Possible Causes:
29721 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 29721 Code
- Inspect all the connections charge pressure fan relay (j712), 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