VW Code 00399
00399 Description And Summary : |
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When you open intake air heater "a", circuit open It could be due to limited air getting through your air intake turbo/super charger wastegate solenoid c (n388), electrical and fuel injector group 'd' supply voltage, circuit high is the final reason of the code. |
00399 Possible Causes:
00399 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 00399 Code
- Inspect all the connections temperature sensors for drive cycle radiator exhaust (g382), signal too small
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns