alright well i have a 91 hatchback dx and i recently swapped in an obd0 doch zc. i got the engine from hmotors so im thinking its not in too bad of shape. it started up fine but when i applied the throttle about half it sounded like it was at the revlimiter. i dont have an rpm gauge so i cant really say how hi up its going but it sounds like around 3k. ive tried setting timming on it that didnt fix it i changed the fuel filter spark plugs and dizzy cap. none of those fixed the problem but it didnt make it accelerate a bit better. my harness did get pretty hacked up since there where 3 people doing that while i got the engine in so im not too sure on what to focus on. my ecu is showing a solid red light but ive heard different things from ppl saying its good and others that its bad. i did plug it in an 89 crx si and it worked fine so im assuming my ecu is good. any help would be appreciated.