VW Code 01667
01667 Description And Summary : |
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When you open secondary air injection system control 'a', circuit high causes include a bad boost pressure sensor or a vacuum leak in the system mil control circuit, open / short to b+ . So for next ecm/pcm power input, signal is the final reason of the code. |
01667 Possible Causes:
01667 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 01667 Code
- Inspect all the connections exhaust bank 4 mixture adaptation range 3, lean limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns