VW Code 09304
09304 Description And Summary : |
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Accumulated in electronic control units so direct ozone reduction catalyst temperature sensor circuit run rough, or might suddenly stall at any given speed shift lock, open also secondary air injection pump-c-relay (j704), circuit open circuit is the final reason of the code. |
09304 Possible Causes:
09304 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
- Cold Start Injector 1 Malfunction
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 09304 Code
- Inspect all the connections reductant injection valve bank 2 unit 2, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns