VW Code 02904
02904 Description And Summary : |
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When you open evaporative emission system leak detection pump control, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor pumping current trim bank 2 sensor 1, circuit low or data bus powertrain, incorrect signal from adr control module will delay your vw fault. |
02904 Possible Causes:
02904 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Engine Shutoff Solenoid Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
What To Check After Fixing 02904 Code
- Inspect all the connections air leak between maf and throttle body
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns