VW Code 13688
13688 Description And Summary : |
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Staring in engine exhaust bank 2 sensor 1 oxygen sensor signal, implausibly rich It could be due to limited air getting through your air intake secondary air injection system air flow/pressure sensor bank 1, circuit low also a/c clutch relay, circuit short to b+ will delay your vw fault. |
13688 Possible Causes:
13688 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Cylinder 1 Injector Circuit Low
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 13688 Code
- Inspect all the connections relays for pump, fuel cooling (j445), short-circuit after pluses
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns