slowerTHANmollasses

I got a new P2P ecu for my car which is a 97 HX(D16y5) with a 97 EX(D16y8) engine. Will the harnesses from the original HX O2's fit a set of EX O2's? The P2P ecu is not reading the HX O2's right causing the car to stutter when being driven. Any ideas??

EE_Chris

The HX O2 is not compatible with the Ex ECU and vice-versa.

saleensolution

i think the hx has a five wire o2 and the ex has 4 wire

specv5150

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by saleensolution &raquo;</TD></TR><TR><TD CLASS="quote">i think the hx has a five wire o2 and the ex has 4 wire</TD></TR></TABLE>



Not to menton the different maps for VTEC-E vs VTEC. Either

A)get a Y5 engine

or

B)get an EX ECU.

The harness will NOT accomodate a 4wire O2 unless you re-wire it to a 4wire plug. I am actually going to do a write up on that here soon (as soon as I get my *** up to do it)

slowerTHANmollasses

I have bought an EX ecu and that's where I'm having problems. The O2's from the HX engine are not compatible with the new P2P ecu, how do I replace the HX O2's with EX O2's? Does it require replacing the entire harness or can EX O2's plug right in to the existing harness??

specv5150

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowerTHANmollasses &raquo;</TD></TR><TR><TD CLASS="quote">I have bought an EX ecu and that's where I'm having problems. The O2's from the HX engine are not compatible with the new P2P ecu, how do I replace the HX O2's with EX O2's? Does it require replacing the entire harness or can EX O2's plug right in to the existing harness??</TD></TR></TABLE>

No, you need to ocnvert to 4wire. I am actually about to do this but I bought the wrong conversion harness so if I do the wiring now, my car wont run very well with a 4wire on the Y5 ECU. I think I have the wiring part down, I can IM you what I have found so far.