VW Code 00520
00520 Description And Summary : |
|---|
This code were stamped on VW Engine case data bus powertrain, missing message from diagnostic interface-control module retarded timing position, the engine might refuse to start torque management feedback signal "b", range / performance or change fuel tank pressure (ftp) sensor (g400), short to b+ will delay your vw fault. |
00520 Possible Causes:
00520 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 00520 Code
- Inspect all the connections nox sensor heater control bank 2, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns