I have a 90 integra. the part # on my ecu is 37820-PR4-L01. I need another ecu and I’m seeing a lot of other ecu’s for sale where the part # is the same except the last 3 digits where they are like: A51, A02, A01, L52, A10, L60… will they still work?? I’m hoping yes…
if you is a 90 then you need a 90 as the 91 has a sensor bulit in to the ecu an the 90 does not. i know because i switch my 90 an my 91 an found that out an 92/93 are obd1 while 90/91 are obdo if you need one i will look an see what extra ones i have email me @ greazemunkey73@yahoo.com if you like hope this helps