nello a.

1.can anyone show me how to identify which obd2a harness i have
2. can anyone give me the pinout for this harness so i can repin it to be ex

i cannot figure out what harness i have.
chassis is a 96 ex(obd2a)
the harness i have has 7-8 wires that the plugs were cut from at the end where the 02 plugs are.
i spent alot of time replacing plugs to put an obd1 engine in the car(d16z6).
now, i look at the ecu pinout for obd2a to find that my harness has pins in different places.
is this possible-all obd2a ecu pinouts are not the same obviously.
is this an auto integra harness or something.
it has 4 ecu plugs-i know the green one just goes to the dash.
it fits into a p2p ecu.wrong. i dont know what is up, i have 2 p2p ecus. one has 4 pinned plug holes(my harness has no plug b for this ecu), the other has 3 [plug holes with no pins in d). it is at the shop, but from what i remember, my harness will plug into a,c and d.

nello a.

no one

Unseen Racer

there ya go man

http://technet.ff-squad.com/wiring.obd2a.htm

Unseen Racer

you should really search.
i made a post kinda like this and it got answered. i searched it and it was the 2nd one

nello a.

yeh, i should really search asshat.
i already have that pinout. if you had read you would know that i said my ecu pins are in different locations than the civic/teg m/t ecu pinout
maybe i was not clear enough

Katman

first off, the new HT search engine is TERRIBLE and a total failure. So until they fix it, anyone who says "use the search button" can SUCK IT.

ok anyways...

From your other thread and from what your saying about extra wiring at the primary 02, sounds like you have an HX engine harness that may be auto as well.

If you bring up my OBD2a pinout page, notice, some pinouts are for AUTO related use only. See if any of those auto pinouts match up to your HX wire harnesses wire colors.

OBD2 civic and integra engine wire harnesses are totally different and are NOT compatible with each other or between chassis's.
All 96-00 civics have a 1-piece wire harness design, meaning, the engine harness is all one piece going from the engine bay through the firewall all the way to the ecu plugs. (ECU connector plugs are part of the harness).

96-01 integra's (as well as 92-95 OBD1 integra's and civics) all use a 2-piece engine harness, meaning the engine harness is not 1 piece and breaks off at the passenger side shock tower plugs. The shock tower plugs is the tail end of the cabin harness, and the cabin harness is where the actual ECU connector plugs are part of. This 2 piece design is what makes OBD2 integra engine wire harnesses backwards compatible with OBD1 civics and integra's.

As far as your P2P ecu's go, its sounds like you have an OBD2a and OBD2b P2P ecu's on hand. Compare both ecu plugs to this diagram to help distinguish which OBD2 version ecu's you have: