I have a 95 z28 and here is the problem i am having with it. When i go to start it, it takes a few cranks to get it going. And today i was driving and the car would randomly stall out every now and then. I replaced the plugs (all but one, the number 2 plug) and changed the fuel filter today as well. Air Filter has been changed as well. Im starting to think its the opti-spark but idk.

what do you think?

 

With 100k on the clock I would recommend that you clean your TB, and particularly the IAC.

 

Sounds like your opti is about to crap out on you.

 

excuse me for being kinda slow, but whats a TB?

 

Throttle Body
Idle Air Control

 

alright, thanks. Got a new low spark side of the optispark, so lets see if that fixes it. (there was oil in the old one so....)

 

If you have 100k on the oem opti, it might be wise to do a complete replacement since you have it apart.

 

yea well the cover was cleaned and hopefully this fixes it. I hate not having my car.

 

also check to make sure you have good fuel pressure, which is a very common problem when hard starting is involved

 

+1 for that, Sounds like you fuel pump could be going out on you.

 

thanks for all the help guys, but found out what the issue was last night, after putting everything back in. It was the ignition swich that went bad, so right now my car is jumped till i can get the switch today.

 

found the issue, it was the security system.