I just recently put a GSR b18c1 motor into my my 1990 Integra LS and Im running a p72 ECU. When ever the car hits VTEC it feels like theres a very little but noticeable hesitation and then it takes off. when I first got the motor I was running a p28 ECU and It felt like the VTEC was louder and had no hesitation. I want to know if its better to run a p28 or p72 ecu. Oh the car was also made into an OBD1. Im not good with ECU’s so any help would be great. thanx.
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