help me out....just a little please

[sr20detfreak]

Ok before i start here i have searched and all the search solutions have been tried so don't flame me so bad .

Here we go I have a 1993 240 with the 95 ka24de. Just a couple small mods but i'll put them down in case anyone thinks they have anything to do with it, CAI, hotshot headers, 3in catco cat, 3inch RSR cat-back.

Now my problem.....rich....RICH. Its so rich that it will not stay at an idle it will start but will not stay running, and there is the black smoke and all that good stuff and the WRX type burble out of the exhaust.

Now my list of shit that has already been tried..
-Cap
-Rotor
-Plugs
-Wires
-O2 sensors
-coolant temp sensor
-FPR
-4 new injectors
-new maf
-no vacuum leaks


Please i need some ideas!!