obd2 wiring harness or eg ex civic harness

[cooper]

i have a 93 civic ex and also a 01 obd2 gsr motor. the motor is already bolted in and ready to be wired. should i use the stock ex p28 ecu or use the obd2 p72 ecu that came with the motor. do i need to use the obd2 gsr wire harness or is there a way to make the ex harness work.

 

[AllMotorMonster]

The 01 GSR engine harness will plug right in.

You will however need to add:
Knock Sensor wires
IAB wires
Tach wire (factory tach will not work)

Now, you have to ask yourself?

Do I want IAB control?
Yes= P72 OBD1 ecu
No= P28 OBD1 ecu converted to DOHC specs

 

[cooper]

the whole harness in side the car all matches up?

 

[crxboi]

Okay, I am doing something similiar to my 95 civic sedan. I have a 99 USDM B18C1 Engine, S80 Tranny, and the OBD2 ECU (dunno yet what model). Do i need to purchase a OBD1 GSR ECU? and what model should I get? I want the motor all stock (xcpt for normal bolt-ons). Does anyone have one that I could buy? Mahalo!

 

[posol]

need to, no... but its a lot easier IMO. plus obd1 rocks obd2.

i'd try to pick up an obd1 p72 ecu.
keep in mind you need to swap the iab control.
https://hondaswap.com/swap-articles/obd2-b18c1-into-5th-gen-civic-29116/

 

[crxboi]

okay, stupid question, BUT what is a IAB? I am pretty new to the whole motor swap between different gens. Thanks!

 

[posol]

secondary intake air butterflies in the GSR intake manifold.

 

[crxboi]

Thanks sol, Keep me in mind since I just got my engine, trans, axles, and the wire harness from that donor car. The guy who I am buying it from didnt have the OBD2 ECU so I dont know what model I have but, if anyone wants to swap OBD2 for a OBD1, I am game!!

 

[mathematics375]

obd2 96-98 wiring harness

I'm looking for a obd2 96-98 civic engine wiring harness, can anybody help?

 

[George777]

Check the date on the thread, man. Just start a new one.