Hey guys I recently bought a 91 civic with a b16a swap I knew it had motor problems but for the price i couldnt resist. So basically it has a miss and its on and off so i cant really tell what cylinder its coming from. When I go to start it up it takes a little but if i wait a little it starts right up so that would probably be a fuel pressure problem yeah? Would a fuel pressure problem cause it to miss? When i drive it if im just taking it easy its fine and doesnt miss, when i try to get on it thats really when it begins to miss. So its missing at idle and when i give it more throttle its missing. Lemme know what you guys think

 

Replace the fuel filter and spark plugs and try searching the tech sub-forum. The all motor section isn't really geared toward troubleshooting driveability problems.