I installed a A/F Ratio Gauge on the prelude, I tapped it into the all white wire on the D connector and it's telling me I'm running lean...

I have a couple of questions and I know that it's not the most accurate unless it's a wideband O2 Sensor and I have searched and looked through a few posts.

Q1 What pin # is the wire for the O2 sensor and what color?
I looked at the pin out on the FAQ and it does match my wires on the connector.

I also tried to install a VAFC that I've had for a while and the diadram that I had did not match all of my wires on the connector either.

I'm trying to find out if may be my car could've been rewired before I got to it or if the pin outs I've gotten so far and diagrams are wrong.

Thanks for all the help

 

what year is your car? i have a VAFC and all the papers it came with if you need anything. i looked through them, and there's nothing about a a/f sensor though, sorry...
also, how do you post pics?

 

It's a 95 Prelude, the A/F is for a Gauge that I have not for the VAFC.

I got the manual online from apexi's website.

Who installed your vafc?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BB6racer &raquo;</TD></TR><TR><TD CLASS="quote">what year is your car? i have a VAFC and all the papers it came with if you need anything. i looked through them, and there's nothing about a a/f sensor though, sorry...
also, how do you post pics?</TD></TR></TABLE>
to post pics you need to have your pics hosted like... photobucket.com or we-todd-did-racing.com
after you get the picture hosted put the URL in the image thing like this...



hope this helps

 

You either got the wrong wire, or you have a bad connection.

Double check it all again.

 

welp i didn't read this but my only suggestions are , tap in as close to the ecu as possible , use the same ground that the ecu uses, and just FYI the stock o2 sensor is a narrow band so your just looking at a pretty light show.