bearboy80

I read this interesting post from other forum and it has not been answered. I was wondering if anyone honda-techer can answer this question

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I have undertaken a pretty intense swap and I am hoping that there are people in this forum that might help.

I am building a 1997 LX Accord AUTOMATIC for my girlfriend to get around in. I am not trying to make this car fast, just reliable and get really good gas mileage. With that said, please don't post here with things like "why are doing this swap" or "just get h22a for all the trouble"

I am way too far into this swap to go back now so its time to just get it to work.

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Alright, the swap is a 2000 F23A. The motor swap came with engine, AUTOMATIC tranny, wiring and ecu.

I originally assumed that the 1997 harness / intake manifold / throttle body would just swap over and everything would plug up and run as an OBD2a motor (The F23A is OBD2b and the 1997 Accord LX is OBD2a)

The AUTOMATIC transmission in my accord was blown and since I got the new F23A AUTOMATIC with my swap I figured it would just plug up into my 1996 LX harness with no problems.

Turns out that the OBD2b transmission is different than the OBD2a transmission. The OBD2b transmission is loaded with sensors that the OBD2a one doesn't have.

I am going to run the OBD2b tranny because I don't want to locate a 94-97 tranny for this motor. Everything is so low mileage and I have the ecu for the F23A motor tranny.

So I need to convert my car into OBD2b. I did some research and I noticed that 98-99 Acura CL is obd2b and it runs the F23a1 engine. the 97-99 CL has a 5th gen Accord chassis so its basically a 5th gen accord that is already wired from Honda to run a OBD2b motor.

So I just purchased a 1998 Acura Cl wiring harness (OBD2b F23a1) to use on my F23A motor.

Now I am not sure if I should just get a conversion harness that goes between the F23A ECU (OBD2b) and my 1997 Accord LX inside wiring harness (OBD2a) or if I should purchase a 1998 Acura CL inside wiring harness.

To reask my question in simpler form: does anyone make a conversion harness for the 5th gen accord that will convert an OBD2b motor and wiring harness to run in an OBD2a car (thats AUTOMATIC) or do I have to get the OBD2b Acura CL under dash harness to do this?

Sorry for the long post, its alot of info, thanks for reading if you got this far.
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also if he uses obd2b ECU, how can he solve the immobilizer problem?