hey guys, just wondering whether there is a difference between the ITR factory ecu or the CTR fatcory ecu...
reason being is that i have a b16b ctr engine running in a ek4 with the b16a ecu and i'm having problems with vtech.
and atm i have can get a ITR factory ecu. or should i just continue trying to find a factory CTR ecu?

any help is great, thanks