Got a new NB AF gauge. Different instructions for different types of O2 sensors. Are the 2000 C5 are the O2 sensors..
1. heated?
2. 3 wire or 4 wire?
3. Color of signal wire?

Then, is it better to tap off the wire AT the sensor or at the PCM (if pcm, do you know which pin?)

any help would be GREATLY appreciated.

 

Got a schem now. Thanks for checking.

 

If you really want to know whats going on with your engine, go with a wideband O2, I do not trust my narrow band. Narrow band might be ok on NA, no way with FI though

just my 2 cents