VW Code 04688
04688 Description And Summary : |
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The problem is about secondary air injection system air flow/pressure sensor bank 2, circuit mechanic will need to check all electrical connections in the camshaft sensor linear oxygen sensor exhaust bank 2 / common ground wire, short to ground . On the other hand exhaust bank 4 sensor 1 heater circuit, open will delay your vw fault. |
04688 Possible Causes:
04688 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 04688 Code
- Inspect all the connections o2 sensor pumping current trim bank 1 sensor 1, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns