Hi..

I've had my car running rich for a while and couldn't figure out the problem, then I did an ECU log and realised my upstream sensor had 0 Voltage.

I looked at the sensor and the connector, then found out it was not connected to begin with. Then I've searched EVERY post in EvoM related to sensors and couldn't find an answer.

If someone can help me out with this little issue I'd be grateful.

As you can see in the image below, I'm missing the connector on the car harness, therefore I'm not sure which color from car harness matches with sensor connector.



Closer look..


Engine bay needs cleaning


If someone can have a look at their connector and let me know which color matches with which that would be awesome

Thank you in advance.

 

anyone..?

 

I'm sure someone must have their hood open who can take a quick peak at their sensor connector and close this thread...

 

Ill try to get you one tonight or tomorrow.

 

Thank you !!! You are a life saver. Just let me know with the sensor plugged which color goes with which

 

According to the wiring diagrams, pin 1 is red/yellow, pin 2 is black, pin 3 is Blue/red, and pin 4 is white. IDK if the pins are labeled on the connector from the o2 sensor, if not.
Looking into the connector you are missing with the locking tab at the top, pin 1 is top left pin, pin 2 is top right, pin 3 is bottom left and 4 bottom right.
Hope this helps.

 

Thank you 90zcrex !!!
I will give it a try and report back