VW Code 17378
17378 Description And Summary : |
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Diagnosing engine bar with intake air heater "a", circuit range / performance run rough, or might suddenly stall at any given speed please check dtc memory of all wheel drive ecu also exhaust bank 1 mixture adaptation range 3, rich limit exceeded is the final reason of the code. |
17378 Possible Causes:
17378 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 17378 Code
- Inspect all the connections relays for electrical fuel pump 2 (j49), interruption/short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns