OK well I have a 1994 Honda Accord 4D LX(F22B2)(37820-P0B-A01 OBDI) but I just put a 1996 accord EX(F22B1)(37820-P0H-L02 OBDII) motor in it. I want to put a OBD I in it...
What ECU will be the best for me???

 

not sure of the code but it would be the ECU out of a 94-95 Accord EX

 

If that EX OBDI ECU doesn't work, you probably need the engine wiring harness and the OBDII ECU for it to run correctly. You can't just swap OBD's and expect it to run right, they're 2 completely different protocols.

 

You would just need a obd2-obd1 converter.

 

use ur stock obd 1 ecu. and wiring harness. if possible use ur old intake manifold and dizzy. then u wont have to worry about all those extra sensors obd2 has to offer. and u wont have to worry about obd2 codes. lol. or if u get the obd2-obd1 jumper u can use the obd2 ecu. and if u use the complete obd2 motor, use the stock harness and u will need a jumper for the dizzy and u need to figure out the wiring for the IAC cause obd2 is a three wire and obd1 is a 2 wire. other than that, the wiring is plug and play.

 

i've been trying to get the same swap to run for 2 years!! not that simple once you are mixing and matching ecu's and obd1 and 2. mine has a timing issue from 1300rpm to 2100 rpm, and no matter how many parts i switch out cant get it to work.

i went 92 lx f22 to 96 acura w/ f222b1 used a 96 accord ex ecu and rywire harness and jumper harness, any input???