im currently driven an 91 4dr h22a,when i first swapped the motor i was under the impression that i had all normal components motor,p13,ect.... but i noticed that i was not poppin vtec so i took it to a shop to find out what was going on. after some research i was told that i had an f22a automatic ecu. i was suggested to get a gsr chip p72 and he will chip it, so I did. i got the ecu chipped and he installed it. when the car turned on it would cut off barely staying above 300rpm. but when you give the car some gas it will clear up(above 4500-5000). but then afterwards it
will do the samething. so we took out the gsr chip and installed the f22a automatic back in and boom! everything back to normal. now im able to pop vtec but my car is still running off the wrong ecu. the guy suggested that it was my jectors because when using the gsr chip the car requires more fuel rather that using the f22 chip. i wanted to know if this is true?if so what size injectors should i use? and if its not the injectores can you give me some suggestions?