`I have a B16b CTR engine with a modified obd2a harness to fit it. Im putting this swap into a 94 del sol S , i have everything for the mounts and about to pick up a shift linkage for it but my question involves the ECU. Im a bit confused on what im needed to do to swap the engine to obd1.

Would i just need to plug and play and just rewire the alt dizzy and change out the injectors to the obd1 d15 injectors?

or can i use my moddified obd2a/b harness and wire it up that way?

help is appreciated!

 

Describe modified OBD2a harness. Is it the one piece Civic one or 2 piece Integra. If you can get an OBD2 Integra harness it'll plug and play with your engine and plug in at your shock tower. If you use a chipped P28 you'll only need to wire up VTEC directly to the ECU.
Or you can reuse your injectors and use an alternator adapter and distributor adapter to wire those up or if you feel comfortable soldering the wiring plugs you can do it that way as well.

 

Like hero said, and I can also confirm this, get an obd2a integra engine harness. It will plug up to the shock towers and everything. My cousin didn't need to modify any wires in his del sol. It was actually a surprise to me to see it work that way but everything ran fine. If the motor is indeed obd2 than it should come with the sensor on the crank and everything should be obd2 including injectors and altenator.

 

The B16B doesn't use the crank fluctuation sensor. What ecu are going to use.

 

I have a feeling its the civic si P2T ecu

 

I hope not if he's using it in a 94 sol, that's a project that will never be finished. With the emissions items alone that would be a nightmare.

 

sorry for the late reply , we ended up using obd 1, harness, injectors , using a distributor conversion , and rewiring the alternator. most everything plugged up, im sending in the old p06 ecu to get chipped and modded for vtec car should be ready to start soon.