So today I was driving back home from work and it has been snowing lately here in Belgium, so just when I was about to get home my car shuts off and it wouldn't start again, push it to my garage and and looked under it and notice that all four cables of the O2 sensor where disconnected by the snow, yeah the car is pretty low too. So I remove the O2 sensor and the other end to put it back together notice that is a universal one and I don't know in which order the cables were. The O2 sensor has white, white, gray and black and the other end tht goes to the car has black, black, white and blue. Anybody has any idea or knows what can happen if I connect it wrong? Thanks a lot.

 

Caution...............you may be a Euro spec car, so see if the wire colors make perfect sense before attaching!

 

The car is US spec, was bought in the states.

 

Hey thanks a lot for the information man.

 

Hope it helps, I didn't like what I saw based on the wire colors you were calling out!

Maybe Dan has some info? I see he might possibly be viewing this now.

wire colors you called out makes me think it's the neutral and reverse switches, but what do I know??????
Not sure how you would've taken those out though?

 

Well I went over there and check the end in the car, and it has the colors that the PDF file states, apparently the male in the connector is from other car too. so the O2 sensor has two whites one gray and one black. Any idea? Thanks.

 

First off.................front or rear o2 sensor? I could assume rear, back on the CAT, but want to know for sure!

 

which one is the signal and ground wire?

 

is the rear. I found out that the white wires are the heater wires and it says they do not have to match, the black is the signal and the gray is the ground, now I need to find out the end on the 8.

 

So anybody knows where can I find what each color of the o2 sensor represents, btw is a 2004.

 

Based on what you said, in that "the white wires are the heater wires and it says they do not have to match, the black is the signal and the gray is the ground".

Looking at various drawing and pages of the manual, it would appear that
Heater power is the red/white. ====== (connect to White for you)
Heater ground is the red. ===== (connect to White for you)
So that should be good there.

Now.......Sensor in is yellow ==== (connect to Black for you)
Sensor out is black/red ==== (connect to Gray for you)

 

Hey thanks a lot man. Unfortunately after hooking that up the car still doing the same thing, so after trying to fire it notice that the exhaust did not get any heat at all so then I fire it again and it was still cold, which means to me the the coils totally stop working all four, which is why the car went completely dead all of the sudden, like it was turned off. Is there a fuse for the coils?

 

Could be quite a lot of things at this point..............including being flooded. However, if you can read a schematic then PM me you E-mail address., or better yet................go here http://foxed.ca/rx7manual/2003mazdarx8/ or here http://www.revolutionrotorclub.com/f...ne_Control.pdf