vacuum leak?

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...

08 MS3 Rough Idle?! +20-24.80 STFT’s, AFR bouncing around between high 13’s to low 17’s. Vacuum at Idle is -4’s. Found a couple small vacuum leaks, including MAF sensor oring was broken. 1 revision in from Freektune, trying to get the issue lined out, any ideas? Justin emailed and said it was a...

- My son totaled his 2012 Mazdaspeed3, but what a sweet car that was. We had just gotten it the way he wanted, had a good tune on it, racing seat, everything. Oh well, what are you going to do? - He found a 2006 Mazdaspeed 6, which I had shipped up from Florida. Of course, he wanted to...