VW Code 04306
04306 Description And Summary : |
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When you open oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded retarded timing position, the engine might refuse to start secondary air injection pump-d-relay (j705), circuit short to ground and wait then diesel particulate filter pressure sensor 'a', circuit high is the final reason of the code. |
04306 Possible Causes:
04306 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Glow Plug/Heater Circuit 'A' Malfunction
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 04306 Code
- Inspect all the connections exhaust bank 3, probe 1 heating circuit of electrical errors
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns