yeah have 91 crx with a b16 swap. well anyway it came with a auto ecu well i had it reprogrammed this guy writes is own programs. well this is the problem i'm having a hesitition sometime when u accelrate humm i know its probably not anything with engine just wondering if guy messed up my computer some kinda way.

 

It already sound ghetto enough ..Id buy a Man. pr3 or pw0 ..then It sounds like your secondary o2 sensor is not hooked up correct eitehr causing the hesistaion...or may have some timing problems ..But usualy if i b16 is hesitaing its an 02 sensor thing

 

ok i don't have my second o2 sensor hooked up because have a header so i just tied both o2 together into one so what do u recommend that i do. i was thinking of going to obd1.