Ben_si

I have no idea what wire on the ecu i need to hook my a/f guage up to. I know its purple to white but which one???

Pioneer162

there is no way you could've searched and not found the answer, there are dozens of threads that contain 'ecu pinouts'......

MikeD718

its a solid white one. i think there are 2 to chose from so pick teh right one

00supercivic

if your hookin up that guage just splice into the wire harness on hte o2 sensor. its a white wire but use the sensor on the o2 sensor on the manifold/header what ever the case may be.

SiDonny

on the ecu splice into the white wire on the third ecm/pcm connector to the right. it's going to be the one in the middle of that connector and make sure it's the thick dirty whiteish looking one beucase the other one is just a ground.

Ben_si

does the 00 si have wideband? cuz if not im selling the a/f gauge from what iv hurd

Kamin

no it dosent have a wideband, if you want a cheap wideband look at AEM's UEGO setup

egsleepercivic

the guage is pretty useless without a wideband