Hello all,
I'm trying to find the pin number and color codes for the left oxygen sensor signal wire at the ECM connector. According to my haynes manual, it should be pin 43 and the color is tan/red. I did find the wire for the right side-which the haynes is correct. On my 90 SC, pin 43 does have a tan/red wire, but it's about 2 gauge smaller (approx 22ga) than the right (pin 29, approx 18ga). Another important note, pin 43 produces a constant 4 millivolts regardless of engine speed or temp. Is it possible this is the correct wire but the oxygen sensor is bad? Anybody have a ford shop manual or better schematic? For those who must know I am installing an A/F meter. Junk? I'm sure they are, Just need to see it for myself I guess.
I did search here and tccoa with no luck, just found a lot of trash talk about the A/F meters!
Thanks for your help....
JJ
I'm trying to find the pin number and color codes for the left oxygen sensor signal wire at the ECM connector. According to my haynes manual, it should be pin 43 and the color is tan/red. I did find the wire for the right side-which the haynes is correct. On my 90 SC, pin 43 does have a tan/red wire, but it's about 2 gauge smaller (approx 22ga) than the right (pin 29, approx 18ga). Another important note, pin 43 produces a constant 4 millivolts regardless of engine speed or temp. Is it possible this is the correct wire but the oxygen sensor is bad? Anybody have a ford shop manual or better schematic? For those who must know I am installing an A/F meter. Junk? I'm sure they are, Just need to see it for myself I guess.
I did search here and tccoa with no luck, just found a lot of trash talk about the A/F meters!
Thanks for your help....
JJ