i have seemed to run into an issue............to put into a nut shell, went to go out and stat up the "ferrari" (so to speak) and it initially started up fine; about two minutes later it all of a sudden started running like it was sort of missing.....i have already done a tune-up on it so i have kinda rules out plugs,wires etc. i remove exaust from manifold thinking it might have been the cat. but it wasn't......i'm kinda torn up as to what it might be....coils,emmisions,ecu??????manual dosen't list a troubleshooting section....and would you believe mazda doesn't have a clue and there is no one in town who wants to touch it....can anybody give me some insight or possible direction.......
thnx

shawn

 

maybe some bad gas cause mine did thesame thing when i bought gas from this off brand so too speak gas station when i was low once far away from my normal place and it was fine when i refilled the tank couple weeks later

 

my best guess is a vacuum leak. Although, knowing your car model would be kind of helpful in this situation. Give some more info on the problem and you will probably get more help. but for now, I'm gonna say vac leak.

 

give the specs on what car we are talking about

my guess in the dark would be timing if its missing bad
or vack leak
or maybe one of the houses after the MAF sensor to the turbo (or throttle body) has got a crack in it