Baffled, won't start??
 

Ok, I just completed my new turbo setup and already I'm having some issues. For some odd reason the car will not start. I've been reading through some other posts on the same issue but with no luck. It was running just fine the other day while I doing some logging, but now it just cranks, but will not start. I have checked all sensors/relay/fuses and they all work fine and I just recently put new plugs in. Car ran fine for a couple of days, and then one morning it just quit starting all of a sudden. Going to pick up a new ing relay tomorrow just for giggles, does anybody have any other ideas what could be wrong? :confused:

how is fuel pressure ?

crank sensor? Mine did the same thing, tried everything, then I thought well it might be the crank sensor and sure enough it was. Hard to know what it could be.

Check the wiring to the crank sensor, lose that & the fuel pump shuts off.....or should I say check your fuel pressure. :confused:

Fuel pressure is good, 58-62 psi. I logged the crank signal and it was definatley pulsing, I watched the engine rpm go up while I was cranking, the cam also sensor has a good signal. I don't have any CEL's at all.
The only reading I was not getting was coil mis-fires, they were all zero. I was thinking that I should at least get something if the they were working. I was contemplating on changing the plugs out again, just in case they were fouled from all the cranking while trying to get this thing tuned.

can someone please tell me how to start a new post I'm having problems with my 98 Z28 and need some advice please help pm me or sschevelleman08@yahoo.com thanks

check the starter relay in the fuse box.I had to trace that down awhile back.As soon as i swapped it all was well.

Check all of your grounds to see if anything might have shook loose.

change your plugs. i've had this exact same thing happen to me. ran for a few days logging and tuning. next day went to go crank and nadda. swapped plugs and cranked right up on the first try. gl.

Turns out it was the plugs, thanks for all your help, I can breath a little easier now. :D

Computer harness tight?
 

Computer harnesses bolted down ? LOL I did this last week and thought i was lossing my mind LOLI unbolted my computer harnesses to change my heater core hose and forgot to tighten back down after 6 months of waiting on a new hose from GM