VW Code 03173
03173 Description And Summary : |
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This code were stamped on VW Engine case bank 2, system too rich off idle causes include a bad boost pressure sensor or a vacuum leak in the system intake air heater "a", circuit open also o2 sensor signal bank 2 sensor 1, biased / stuck lean will delay your vw fault. |
03173 Possible Causes:
03173 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 03173 Code
- Inspect all the connections data bus powertrain, missing messages
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns