i have a 99 z28 and have all the bolts on and 3500 stall....ok when i sit at a red light or a drive thru for awhile the car wants to start chokin and try to die, so im think fuel related....check fuel pressure its at 60, changed fuel filter..and its still actin up, im not throwin any codes and ive always put 93 octane in it...whats can be causin this PLEASE HELP.....oh and when i get on it it doesnt fall on its face or anythin its drives smooth ion cruisin

 

??????

 

all your bolt ons will make it idle funny sometimes. either that or a vacum leak somewhere. i bet you got a slp maf dont you?

 

yes i do how did u know

 

alright it threw a code last night but i didnt check it....i took off the mass air cleaned it with a q tip drove it for a little bit last night it felt better it didnt idle as high when i first pulled up to a red light as it use to so maybe thats it....i didnt know a mass air could cuz so much...