Car will be starting soon and i would like to read AFRs right off the bat. So i searched around and this is what i came up with. The ECU is a OBDI PR4 w/ s300. I will also be cutting the resistors R136&R138.

Is this correct? Or should i solder the blue and white wire together and ground close to the ECU?. I will also be getting my 12v (red wire) from A25.

 

Maybe this will help, just want to be 100% sure.





Yellow (analog 1) - D10/ ELD
Brown (analog 2) - D14/ O2 signal
Black (calibration button) - ground/chassis
White (signal ground) - D22/ Sensor ground
Blue - Also ground to D22 or chassis
Red (power 12v) - A25

Then turn the key, expose it to "free air", install it, then change the setting for 0v =7.35AF and 5V =22.39AF

 

This is the guide I used sir.

http://www.xenocron.com/install/Xeno...etup-Guide.htm

 

That helps, thanks. They didnt mention the Blue and White wire, but im guessing i can ground them to the chassis.