97 z24 2.4 trouble - endless

EVERY morning, lunch, and clock out time, my car starts fine, but runs rough when you give it gas. Sometimes it even goes to 0 RPM and shakes before shutting off. I have taken it to 5 machanics and have replaced everything. What the hell could this be?

I have my car in the shop now. Any information would be helpful before I get it out. Please help me!

what exactly did u get 'replaced'? and also how many miles are on the car, 5 speed or auto? did u do any modifications to the car at all or is it still stock-form?

I have replaced the coil tower, the map sensor, the air idle control, the trottle position sensor, the 02 sensor, the fuel filter, injector o rings, air intake gasket, etc. 5 speed w/ 105,000 miles all in stock form and all replacements are gm parts.

I have a 97 Cav. z24 and i am having the same problems...sometimes when i first start it up and start to go then it starts spittin and sputterin and running like crap will about 5 secs if it hasnt died then it will fix itself and runs fine..im currently in a diesel/auto mech course so i hooked it up to the scanner to see if any codes have coded for it and what i found was that the anti-theft for the fuel was reading incorrect which was making the ecm overtemp in return causing random missfire....so this one problem is coding 3 different codes...so right now im trying to research to figure a way to over ride or turn off the anti-theft to see if it will fix the problem...this is the only senseable solution since ive read that others have change every mech. piece known to man....which figures it would have to deal with the stupid computer....so if i figure it out or if someone else please post a reply

I have the same problem in my 97. Never bothered to look into fixing it, I just figured it was something stupid about the fuel system or the electronics. Seems to not die on me when I give it some gas as it starts to die, just be prepared for a kick when it doesn't die and jumps back to the RPMs it should be at.

I had the same problem with the wife's 98 z24, and always attributed it to bad gas or not being warmed up. It would sputter and die, especially shortly after start up. The other day I was fishing around under the hood and noticed a cracke/broken vacuum line, not sure what its for but its only 6" long (max) on the front side of the engine. I replaced it and it hasn't sputtered or died since.

Now if I can get these stupid motor mounts replaced.