ok i recently picked up a 96 hatch since some drunk hit my 92, anyway it already had a 1.6 block so i converted it to 5 speed. everthing ran great. so i recently put a z6 dizzy and head on my y7. i know people do this. but since then i put in a p2p ecu so i can run the vtec. all of a sudden im gettin codes for ckp sensor and code 91 wich is ftps (fuel tank pressure sensor). i am not new to this but for some reason i am gettin confused by all the hear say. some say the z6/y7 is screwing my timing up wich is hard to believe considering the only real difference in the y8 and z6 head is that the dizzy bolts are different. why am i getting the ckp code. also the code 91. honda shop manual says EX civic has a sensor on the fuel tank and valves inside wich the p2p ecu cant find. is this true and do i just need a ex fuel tank. i dont want to go obd with a p28. i had a p28 and harness and i couldnt get the kick panel back on so i just used a manual p2p and a knock sensor. any answers or help. some dude is trying to say that with a p2p i dont need knock sensor or ftps. i know i do. also is the z6 head throwing the timing off but then running ok 50% of the time. PLEASE HELP ME