Ok, so I put an obd1 gsr into my obd2 integra. The injectors, alternator and dizzy where converted to obd2 but I wanted to run an obd1 ecu last minute and just ordered a jumper. My question is, do I just wire vtec like normal for the obd1 ecu? Or is there another process? It's the oem ls harness. Also, the cabin harness already has wires going to vtec, knock and vtps, do all integras come ready for vtec or do I have to do something different? I'm following the guides from ff-squad but I don't know which guide to follow, obd1 or two since I'm using the jumper.

Any help is appreciated.

 

is your integra originaly an LS?

 

Not all come ready for it, only gsr's/type r's.

But that being said if you have it already wired up from the factory just plug the jumper harness up, itll move the wires to where they need to be on the obd1 ecu. You shouldnt have to do any extra wiring.

But if your going to add the wires your self and plan on adding the pins into the oem ecu harness, follow the obd2 guide. If not just cut and solder the wires coming from the jumper harness and use the obd1 guide so you know which wire does what.

 

I forgot to mention its a 97 rs.

Yea I guess my question is since I'm running the non vtec harness, do I wire into the obd2 connectors or to the obd1 section. But what you said makes sense, the jumper should convert it for me if I run it to the stock connectors.

 

Yeah do it to the stock connectors, that way the jumper is still easily removable if you ever need to take it out. Are you running wires for all the additional sensors or just the solenoid and iab's?