Very weird question.. which wire is the a/f one.

[Datsrboi]

I am exhausted and had a few drinks haha... But base on this diagram... If I want to plug up a narrow band a/f gauge.. its the Harness W wire number 5 right? Is this correct?

I promise to not drink too much next time.

 

[tlo86]

dont you usually just tap the o2 sensor?

 

[10secdream]

Agreed tap the sensor not the harness.

 

[suprastanger507mgte]

Run the signal from the check connector, maybe a better option