SE-R Running rough/Won't Start...HELP

[b13sccadriver]

Our 91 SE-R was running fine, my girlfriend drove it home from work and twenty minutes later we get in it to go get dinner and boom won't start.

I messed with it and it started but runs rough and varies. Sometimes it won't start, sometimes it does and runs like it's on 2 cylinders, REAL rough, won't rev above 2k, and sometimes it sounds decent until 4k or so it starts running like it's not on all 4 and will back fire some out the intake. It misfires like crazy and just sounds nasty.

RAN FINE before this.

The car is bone stock except for a K&N filter.

UPDATE:

Ok so we continued messing with it when yesterday the clicking, popping, etc all got quiet. The only noise NOW is the starter motor spinning. The engine is NOT turning over, cams are NOT spinning, the timing chain LOOKS fine, no visible damage.

Flywheel/starter issue? What could it be? I'm so confused.

[b13sccadriver]

No SE-R owners here that can see if that's used on SE-Rs?

[RED_DET]

There should be a ground to that location. You either have bad injector(s) or possibly ecu problem.

[yellowspecv918]

i agree, sounds like fuel injectors/clips. check the connection and make sure it didnt come loose.

[b13sccadriver]

A friends SE-R doesn't have anything connected there either, anyone know if it really is a ground and where it goes to? Can I just connect it somewhere?

How can I check my injector stuff? It won't start at all now and sounds like death turning over.

[b13sccadriver]

Does anyone on this site know anything about these?

[TOMMY VERCETTI]

There are People on Nicoclub that know. There just not around right now. Well, did you try the Nico-on-line Mechanic? Or you might want to try this: http://www.se-r.net/car_info/problems/i ... ing%20idle

[b13sccadriver]

Well...CRAP. Updated original post. Now I am REALLY lost.