I was wondering if the stock p2p ecu was better than a p28. The motor is a 95 in a 96 civic ex. I have the harness to convert it. I have tried both and the p2p does good but I blow the knock sensor code b/c 92-95 motor dosent have a knock sensor and a 96 up does. The p28 does ok but sometimes the motor will start and die and the idling is low with no codes. I just want to use the one one that is the best. For anyone that dont know, my motor is d16z6 with these mods. headers, skunk2 cam gear, fuel pressure regulator with fuel gauge.

try doing a leak down test.

what is that and how do I do it Thanks

http://www.carcraft.com/techarticles/11 ... index.html

hope that helps.