please help me figure out what is the best way to wire this engine into my obd0 car while using the harness on the motor and complete obd1 sensors etc...

 

search .....

 

i have been for two weeks and am still not sure what car i can get a harness off of that will plug into the motor harness, ive found that i can use 92-93 integra or 92-95 civic ecu plugs and solder them onto my existing stock harness setup if i add a few extra wires to the plugs

can anyone confirm my findings i would like to get the rest of the necessary parts to get this swap underway

thanks to all who respond

 

might as well convert to obd1 it's easier. i have a B17a motor but opted to go with a sohc-v. just easier for me to solo the swap. i can move a sohc-v but not a B17. don't feel like paying someone to do it when i should be able to do it myself.


-edit-
just need the 88-91 helms, and 90-93 helms and look under electronics. find out what colors match and match them up. easier to get both plug sides, and leave the engine harness uncut. so from that point on you can use any OBD1 engine, and don't have to mess with wires.

 

I converted to OBD-1 using a harness from user "Blown90Hatch". You need to buy a 4-wire o2 sensor. Is your car a DX? If so you have to convert it to multi-point fuel injection (run 2 wires from the ECU). Use your stock CRX engine harness and just add/extend the wires/plugs where needed. If you need any more help PM me, I just did this swap a couple weeks ago

 

my car is a 90 si crx and the 93 gsr motor has a complete harness on it... i would like to leave it untouched and just modify the harness inside the car to suit the obd 1 ecu can anyone help

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegRX91 &raquo;</TD></TR><TR><TD CLASS="quote">my car is a 90 si crx and the 93 gsr motor has a complete harness on it... i would like to leave it untouched and just modify the harness inside the car to suit the obd 1 ecu can anyone help</TD></TR></TABLE>

If i were you, i take off the obd1 harness and use your original obd0 harness while just using some of the original plugs by repinning them to fit sensors on the engine. Yes, you'll need and obd harness.

 

i can modify my original engine harness to accomidate a obd1 ecu?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegRX91 &raquo;</TD></TR><TR><TD CLASS="quote">i can modify my original engine harness to accomidate a obd1 ecu?</TD></TR></TABLE>

I wouldnt even try it. Not worth the time and effort.

Use the harness that came with the car and if u wanna stay obd-0, then get a first gen B16 distributor and ecu. Hopefully u have a SI crx, because it will make it a lot easier. Do a search for B16 swap and basically follow that. The info is readily available all over the place.

 

lol
1. USE YOUR ORIGINAL HARNESS
2. PURCHASE CONVERSION HARNESS
3. GET 4- WIRE O2 SENSOR
4. GET P30 ECU
5. KEEP B17 DZZY...REPIN IT
IT'LL BE ALL GOOD

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daidilus &raquo;</TD></TR><TR><TD CLASS="quote">lol
1. USE YOUR ORIGINAL HARNESS
2. PURCHASE CONVERSION HARNESS
3. GET 4- WIRE O2 SENSOR
4. GET P30 ECU
5. KEEP B17 DZZY...REPIN IT
IT'LL BE ALL GOOD</TD></TR></TABLE>

Perfect

 

thanks guys but i was hoping i could build my own conversion harness.. this motor has just tapped out my funds and i need a cheaper alternative to get this thing running

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegRX91 &raquo;</TD></TR><TR><TD CLASS="quote">thanks guys but i was hoping i could build my own conversion harness.. this motor has just tapped out my funds and i need a cheaper alternative to get this thing running</TD></TR></TABLE>

You could try, but for the time it's going to take you might as well buy one...plus if there's something wrong with the connections it's guaranteed. Do you really want to be sitting there wondering why your car's not starting and going over connections over and over and over again?

 

what if i keep it all obd 0 use my stock harness add the vtec wires run a pw0 or pr3 ecu and swap the injectors and dissy for obd 0 also

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegRX91 &raquo;</TD></TR><TR><TD CLASS="quote">what if i keep it all obd 0 use my stock harness add the vtec wires run a pw0 or pr3 ecu and swap the injectors and dissy for obd 0 also </TD></TR></TABLE>

good idea....b17....b16, not that much different.....

 

ok so i am goning to use my stock harness and ecu [chipped] with a b18a trans i have not determined if i can use the obd 1 dissy with this setup can anyone confirm and also will the pressure plate flywheel and clutch all be the same from the b17motor to the b18tran

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegRX91 &raquo;</TD></TR><TR><TD CLASS="quote">ok so i am goning to use my stock harness and ecu [chipped] with a b18a trans i have not determined if i can use the obd 1 dissy with this setup can anyone confirm and also will the pressure plate flywheel and clutch all be the same from the b17motor to the b18tran </TD></TR></TABLE>

sounds good....