I'm working with a obd1 nonvtec harness from a 1993 Acura Integra. I rewrapped the whole thing with nylon sleeving and heat shrink tubing. However, the time from start to finish for this project was six months. I do have all of the wires into each coupler but I'm not sure which couplers are which (ie coolant temp, tps, MAP, etc etc).

So..

Does anyone have a harness diagram for the engine harness in this car? I have a copy of the "Electrical Wiring" from hondahookup.com but does not include the engine harness. I would imagine even any obd1 harness would be similar enough that I could figure out which couplers are which.

 

haynes manual or ask www.hondata.com

label your plugs

 

I've got most of them figured out. Now I just need to figure out exactly what the coupler I have left goes to. One wht-grn wire and one black wire.

 

www.helminc.com

 

I'm not spending all that money on a Helms manual to solve one tiny little problem.

 

Yikes....that's a ton of cash for something you will never use again in the future....good call.

 

Thanks for your help.

PS: I have a copy of the electrical section of the Helms manual for second gen Integras and I have yet to find the coupler in question.

 

White/green and black = "Engine Oil Temperature Switch". 94

 

I just figured that one out last night. Now I have to figure out where that sensor is because I don't have any open sensors left. Thanks a lot!

 

fcm:
Do you know the answers to any of these questions? I see you helping out with these questions all over g2ic!

It appears that the b16a does not have an oil temperature sensor. Is this sensor necessary? What does the output from this sensor control? Thanks in advance.

edit-I just did a little more research and found that the p72 ecu that I am using does not have an input for this sensor so I *think* I can run without it. However, I would still like to know its purpose.

 

The engine oil temp. sensor is used to turn on the rad fan on, [when ign. switch is off] if oil temp is up too high.

It is obviously not a necessary sensor as CDM G2s do not have them or even the "Radiator fan Control Module" that it connects to. 94

 

Okay cool. The coolant switch should control the fan's normal operation, right? So the oil temp switch is essentially just a fail-safe and isn't typically controlling my cooling fan? I really appreciate your help.

 

I believe it has something to do with your emissions, your, [USDM] emissions standards are a lot stricter then ours.

The ECT switch will control the rad fan, just like it does on CDM G2s, [just not when ign. key is off] we just do not have the EOTS and RFCM, seems to me they are just two unneeded electronic parts that can and do fail.94

 

Alright, I understand. Once again, thanks for your input.