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Does anyone know if the air / fuel / O2 exhaust sensors are plugged directly into the engine harness or is there wiring between the two ?
 

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Does anyone know if the air / fuel / O2 exhaust sensors are plugged directly into the engine harness or is there wiring between the two ?
Schematic for the '07 models shows the A/F and O2 sensors directly wired to the ECM, without any intermediate connectors or junction blocks. I'm sure the '10+ models are the same.

Given the critical nature and small amplitude of the sensor output signals, direct wiring is the most reliable way to go.
 

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Discussion Starter #3
Ok thank you
 
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