so i have a 90 crx si that has a d16a1 block with a d16z6 head and intake manifold skunk 2 cam gear cold air intake stock crx header(for now) with the stock rods but 89 integra high dome pistons i put super premium gas in it from citgo i got it running but the car runs for a minute or 2 sounds fine then throws a map sensor code and wen it gets over 3k rpm it makes a hissing noise and dies what could this be? i already replaced the map sensor i have the p28 ecu just havnt ordered the wiring harness yet to install it could this be the problem? i still have the crx intake mani i thought maybe i have 2 put that back on the car but i have read write ups on this swap and they used the z6 intake mani this is my first engine swap/rebuild ive ever done outside of school spring is almost here and this is the year im planning on taking it out so i need to get it fixed so i can sell my accord