i have a 91 crx dx with an ls swap and its converted to obd1 and cannot find a 5 speed p74/p75 ecu any where all i can find is the obd2 p75 and an automatic p74 so my question is can i run an automatic ecu in my 5 speed crx??

 

no, it'll throw everything off.

 

ive heard you can it will jus throw a code cuz of the auto trans not shifting out of parkor something like that

 

yes you can you have to jumper the park sensor thinger to make the car think it is in park or neutral and you will have a cel