VW Code 17643
17643 Description And Summary : |
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Diagnosing engine bar with exhaust bank 4 oxygen sensor correction behind catalyst, rich control limit exceeded It could be due to limited air getting through your air intake o2 sensor pumping current trim bank 1 sensor 1, circuit low or control module defective is the final reason of the code. |
17643 Possible Causes:
17643 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 17643 Code
- Inspect all the connections data bus engine/engine, missing message from ecu 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns