I have the color coding diagram...Green and black (ground), white (signal), black (switched power)...Where can I tap the other black wire to get power to the heated O2 sensor? I was reading a honda manual and a wire colored yellow and black is for switched power...I just want to make sure before I start connecting or splicing any wires.

 

Just find a swithced 12 volt dc power source.

 

I already know that...sorry, but I wasnt clear on my question...is there any switched power wire in the engine compartment that I can tap on? Alternator, distributor, sensors, relays? which one sensor, which part and what color wire?

 

yea, i'd like to know also..

 

you can try the yellow and black wire on the distributor harness. Use a test light or dvom to be sure.

 

or at the injectors, or at thefuse block (i think)

-Dustin

 

In the main fusebox at the fuel pump...

Eric