I've got a 92 Prelude with a H22a4. Currently throwing ECU code 9 (CYP sensor) I'm trying to verify that the CYPP and CYPM are wired correctly to b11 and b12 on the ecu, however the distributor I have doesn't match any of the wiring diagrams. They all show 7 wires on the main plug... and I only have 4 wires.... Here's a pic:



And here's the box it came in.... So this is ODB2 right??


I need to know on the harness shown in the picture, which wire is CYPP and which is CYPM.

 

I got CYPP is C4 and CYPM is C14.

Next question, which ECU are you running?

 

ODB1 P13. Which means for me CYPP = b11 and CYPM = b12. What i'm looking for is what wires on the dizzy harness in the pic those ecu pins need to be connected to.

 

i know i'm running the same thing. but the picture you have shows me the OBDII distributor. You need to run a OBDI distributor with the P13.

 

No way around that huh? I've got the CKP sensor wired using the one on the crank. I though the only difference between the ODB1 and 2 distributors was that ODB2 doesn't have the CKP sensor inside?

 

OBDI diagram



OBDII diagram

 

I found something similar to the ODB2 diagram you have below. It shows the 2 CYP wires as black and yellow. My problem is those colors are nowhere on my distributors harness, as shown in the pic.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR981002 &raquo;</TD></TR><TR><TD CLASS="quote">No way around that huh? I've got the CKP sensor wired using the one on the crank. I though the only difference between the ODB1 and 2 distributors was that ODB2 doesn't have the CKP sensor inside?</TD></TR></TABLE>

That and TDC sensor. the TDC and CKP are in aline.

OBDI wire color

CKP
Blue/Green B15
Blue/Yellow B16

TDC
Orange/Blue B13
White/Blue B14

CYP
Orange B11
White B12

OBDII

CKP
Blue C2
White C12

TDC
Green C3
Red C13

 

Could your repost the diagram please. I can't see it.