been doing some reading on this but I cant find the info I'm looking for.

I see that when doing the 90-93 B18A1 into an eg body you want to re-use the civic's harness and extend a few wires and then use the p28 from it with a chip as well as run a later b-series dizzy, etc.

but the body I'm using is a 93 dx. far as I know it doesnt have the p28 though I havent checked yet since the car is still being shipped to me.

The donor car is a 91 teg LS that was flipped but still runs like a champ.

Why would it be so hard to just simply pull the engine/harness/ecu from the teg and toss in the civic after removing everything? nobody ever really addresses this??

I dont have to worry about smog and could care less if the engine is OBD-0 or not for now since I just want to get it up and running and drive it a bit before upgrading it since I've got other worries like bodywork, etc on the civic body before I play.

My home pc is down right now from a lightning strike so I cant check my mitchel program to look at the wiring diagrams either which is the main reason I'm asking this...so if anyone has them and can post them I'd give many kudos

 

Since you motor is a 91, it has OBD 0 electronics, you need to convert your B18A to OBD I electronics. This includes injectors, distributor and ECU. The P28 is a single cam VTEC ecu, it is the wrong one for an B18 LS swap. You want a P75 OBD I ECU.
Use your single cam harness on the B18A once the electronics are converted and you will be ready to roll. Also, to mount the motor you will need a Hasport mount kit, EGB1, to due to the cable tranny and the driver side engine bracket. Dont forget the 94+ integra bracket which is different than the 90-93 integra.

 

an obd1 pr4 will work as well as a chipped p06.


and the integra harness will not plug and play into the civic chassis harness. teh civic harness does though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98 Spec R &raquo;</TD></TR><TR><TD CLASS="quote">Since you motor is a 91, it has OBD 0 electronics, you need to convert your B18A to OBD I electronics. This includes injectors, distributor and ECU. The P28 is a single cam VTEC ecu, it is the wrong one for an B18 LS swap. You want a P75 OBD I ECU.
Use your single cam harness on the B18A once the electronics are converted and you will be ready to roll. Also, to mount the motor you will need a Hasport mount kit, EGB1, to due to the cable tranny and the driver side engine bracket. Dont forget the 94+ integra bracket which is different than the 90-93 integra. </TD></TR></TABLE>

yeah, I know about the clutch conversion and the mounts but why "must" I convert to OBD 1? I can splice the integra harness in if need be. Main reason I am wanting to do this is so I dont have to track down all those parts and because the civic shell I bought doesnt have a "complete" engine harness according to the guy I bought it from so splicing will have to be done anyway.

I just need to get this thing running so I can drive it at this point is all.

 

I just want to know basically if I can pull out whats left of the civic engine harness, put in the teg engine/harness/ecu and then splice the teg harness into the civic body harness to key my key-on power, fuel pump, etc.

I could care less about OBD at this point.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stackz &raquo;</TD></TR><TR><TD CLASS="quote">I could care less about OBD at this point.</TD></TR></TABLE>

you should if you want your car to run. you need to match ecu, dizzy, injectors as all obd1 or all obd0.

 

It would save you a lot of headache and trouble if you just brought another civic harness. First of all, you need to convert to obd1 if you want to run an obd1 ecu. The 91 integra used injectors resistor box so there's one problem. You will also have to splice two wiring harness together when all you have to do is extend some wires if you had a civic harness. Of course, this is just my opinion. Simply put, if you wanted to splice two harness together then yes it will work but you have to think about the resistor box, which ecu you want to run, vehicle speed sensor is different, etc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IHateJDM &raquo;</TD></TR><TR><TD CLASS="quote">

you should if you want your car to run. you need to match ecu, dizzy, injectors as all obd1 or all obd0. </TD></TR></TABLE>

exactly, I know this much, which is why I said I want to pull EVERYTHING from the integra. It will ALL be OBD-0...I want to use the teg's engine/tranny/ecu/engine harness/injectors/etc.

Basically, convert the civic over from OBD-1 to OBD-0 since it doesnt have the complete engine harness and the ecu is missing after getting in contact with the guy again (hell, it was a dx so I'd have had to find a p28 regardless).

I've already looked and the resistor box is wired inline with the engine harness anyway since it runs the injectors so I'd end up taking it along for the ride regardless.

The thing I'm concerned with is this:
I know I "can" take everything from the teg and drop it in with the HAsport mount kit and clutch conversion kit but I also know that regardless of this, I still have to patch the engine harness into the dash harness so the ecu can get the key-on power and send the fuel pump signal, etc. I'm just wondering how much of a problem this is going to turn out to be. I'm not afraid of splicing in the least, I just need this thing running once the shell gets here.

I'll start collecting the parts for converting to OBD-1 and possibly tossing a B20 head on the B18a later on after I get it running reliably.

Oh, and by the way, thanks guys for tolerating my wanting to go ghetto with this and not flaming me into oblivion

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stackz &raquo;</TD></TR><TR><TD CLASS="quote">
The thing I'm concerned with is this:
I know I "can" take everything from the teg and drop it in with the HAsport mount kit and clutch conversion kit but I also know that regardless of this, I still have to patch the engine harness into the dash harness so the ecu can get the key-on power and send the fuel pump signal, etc. I'm just wondering how much of a problem this is going to turn out to be. I'm not afraid of splicing in the least, I just need this thing running once the shell gets here.
</TD></TR></TABLE>

It'll be hard to find that info, since most everyone doing a similar swap would stay obd1. Get the ecu pinouts for both obd1 and 0, and compare. Good luck.

 

yeah, figured I wouldnt find the info but it was worth a shot. anyone know where I can find the body harness wiring diagrams for the 92-95 civics and the 90-91 integras online besides autozone?? for some reason I cant view them on their site.