95Z28LT1-PA

Alright the past few days the Camaro has given me a hell of a time starting up but only in the AM when I go out to start it. Today it took me between 5-10 minutes to get it running after it sat only 13 hours and when it did start it blew out a bit of blue smoke, but once the car is started and ran it'll start up fine every single time until I let it sit overnight again.
Any suggestions? I ran STP fuel system treatment and premium gas but I dunno
Fuel filter...fuel pump??

95Z28LT1-PA

It doesn't seem to really have a miss when idling or when I hit the gas either...a few weeks ago it had a miss when I would tap the gas for it to go to the passing gear and it would bog and miss like nuts...but once the fuel system treatment went through, the miss went away but now I'm stuck w/ the starting problem

ColeTrains'96Z28

mine just did that. changed the Fuel Pressure Regulator(FPR) and it stopped. But i had a problem with my opti harness too. But it'd start like it was flooded. Until the motor got going good and got good and hot it would sputter and run like crap.

95Z28LT1-PA

I don't have the miss no more though...Once the car starts, it's all good

1lowZ-28

i went through the same thing. im not a 100% sure in your case but i was lossing fuel presure. it would leak down after sitting for awhile, and then it wouldnt want to start back up. the blue smoke sounds like its loading up from turning it over so many times to get it to start. then when it does its expelling unburned gas. check the fuel pressure with a gauge and let it sit over night. see if you have any pressure the next morning. it could be lossing pressure anywhere. the fpr/pump/injectors. well good luck.

95Z28LT1-PA

Yep...I put fuel injecter cleaner in and now the car starts fine, but now when I want it to kick it down into a lower gear when going up a hill (lightly on the gas) it sputters and misses and the RPM's jump. If I mash the gas...it'll go like hell. And it's a come and go type of deal...one day it'll be there...the next day its gone