VW Code 16637
16637 Description And Summary : |
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When you open o2 sensor reference voltage bank 1 sensor 1, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system valve for pump - jet: cylinder 9 (n305), electrical malfunction and vehicle speed sensor 'b' is the final reason of the code. |
16637 Possible Causes:
16637 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 16637 Code
- Inspect all the connections charge pressure fan relay (j712), short to ground+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns