injector

Hi, i have a problem with my cx-7 it don't start at all, it cranks normal, start for 1 or 2 seconds, then stall... if i unplug maf sensor, it is starting but idle raise UP and down, and afr is 20-22... :-( stft AT 0 if i turn it off, plug black the maf, and restart, sometimes, it runs, but...

Hey guys - just created an account on here, but I was a member on the mazdaspeedforums for quite some time. I'm trying to see if anyone would have any advice on how to best approach the P0204 injector circuit malfunction and P0304 misfire. The two CELs only come up during cold starts...