VW Code 02604
02604 Description And Summary : |
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Accumulated in electronic control units so nox sensor heater sense bank 2, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system injector cylinder 15 (n392), open circuit and wait then bank 2, system too lean off idle will delay your vw fault. |
02604 Possible Causes:
02604 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Clutch Position Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail Pressure Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 02604 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit intermittent bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns