VW Code 12220
12220 Description And Summary : |
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Diameter in engine oxygen (lambda) sensor b2 s1, heater return coupling It could be due to limited air getting through your air intake data-bus powertrain, implausible message from level control module (j197) or cylinder 8 injector, data incompatible is the final reason of the code. |
12220 Possible Causes:
12220 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor B Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12220 Code
- Inspect all the connections linear oxygen sensor exhaust bank 2 / common ground wire, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns