Ive got a 90 CRX with a B18a1 obd0 motor, bought it with the swap done and now that i looked into it, he was running a p75 obd1 ecu, stock crx harness chopped to hell electrical tape and wires twisted together and a obd0 dizzy. Decided the other day im going to stick with the p75 ecu, but get an obd1 harness and td-55u dizzy and wire it up so everything is the same system. just wondering how much(if any) difference there is between the obd1 p75 and obd1 pr4 ecu pinout and once i have it wired up, will i need to do much as far as tuning goes? using it for a daily driver.

 

check out:
http://www.ff-squad.com/ecu/

 

alright, thanks man. i was startin to worry cuz ive been havin ppl around town i talk to about it tellin me its not possible.. and ive already got all the parts ordered

 

ANOTHER QUESTION!?! i looked on the site above sent by RACEPAK and it says on that site that the obd1 PR4, P74 and P75 are the same programing, so if im using a obd1 PR4 wire harness and dizzy with a obd1 P75 ecu, would it be compatable to the point of plug and play?

 

bump

 

help?