KaDe Misfire, Bad Idle. Help!?

[ag240]

Hello Nico.
I have a '92 s13 with a KaDe, 126k, Catback, and a no name intake cone.

Last week, I went to the store to pick sumthing up,upon returning, i turned the car on and it had a bad misfire. I drove home and tried to diagnose the problem, but im stumped.
It misfired hella bad, and i can smell raw fuel out of the exhaust. i replaced the #2 injector [old injector read 0 ohms] And Spark Plugs [old plugs covered in gas] but it didnt help the problem. It idled better, But didnt fix the misfire.
I have to open the throttle while cranking for it to start, when doing so, the intake backfires.

I tried adjusting timing, removing the hose from the intake to the black box, replacing plugs, replaceing bad injector, and cleaning my cap and rotor. i Checked the ECU and it threw code "21: +Ignition Signal Cuircuit" Im Thinkin its my ignition transistor chip next to the coil, but i dont have any spares. My friend said i might have to replace the head, or machine it. I dont have funding for that.

Any Suggestions??

[Evaprototype]

Likely culprits would be the coil and the crank position sensor. Usually when power transistors go out, the car won't start at all. Check out the FSM, pages EC&EF - 93 thru 95, 104 thru 106, and 161 for the diagnostics.

[Evaprototype]

Oh, and page EC&EF 159 for the crank position sensor diagnostic.

[ag240]

Thank You For Your Help, I Will Look Into It Later.
But The Ecu Threw Code 21, not 11(CAS). So Wouldnt Tha Mean My CAS Is Ok? Maybe The Motor Jumped Timing though?

[Evaprototype]

My apologies, I was reading the inputs for the system and the CAS got locked in my skull. It's possible that you jumped timing, but the coil is more likely.