VW Code 16781
16781 Description And Summary : |
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This code were stamped on VW Engine case relays for electrical fuel pump 2 (j49), interruption/short-circuit after mass to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 2 sensor 1 oxygen sensor signal, implausibly rich also throttle/pedal position sensor / switch 'a' / 'c', voltage correlation will delay your vw fault. |
16781 Possible Causes:
16781 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 16781 Code
- Inspect all the connections intake air heater "a", circuit open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns