Dimeomboost

Hey guys. I have a 2000 ls1 camaro just did a refresh on oil pump and timing components and cam swap. I've done lots of cam swaps and now we had this happen once. The car turns over smooth just wont crank. I had mail order tuner remove vats and put a tune in it for the cam 228r. Also its six speed car. Brand new cam sensor brand new crank sensor noid light shows no pulse at the inkectors. All grounds are hooked up added extra grounds to be sure. All fuses are good I have power to the injector plugs when not cranking. All fuses are good and not blown. Coils are hot. Will fire momentarily if I dump a little fuel into it. What did I miss there isnt one single code showing up after pcm tune

G Atsma

So it fires with a little added fuel. Is it out of gas? Don't laugh or yell, it happens..

Dimeomboost

Noid light shows no pulse while cranking. Also fuel pressure at the rails 59psi to 60 psi while cranking.

Dimeomboost

Bump still haven't been able to figure this out any insight would be great plz help

brandon6.0

iTrader: (32)

Check grounds. Ive seen this happin on a bad ecu ground usually at rear of intake.

If the cam u installed didnt have the cam phaser machined into it, it would not recieve a cam signal and not fire the injectors. (I think this is highly unlikely)

Ive personally seen a bad cam sensor signal not fire injectors!

If u have someone local with hptuners, have them scan for crank and cam sensor rpm counts. This will rule out a sensor or signal problem.

LilJayV10

iTrader: (39)

Did you do a write entire after the tuner disabled VATS?

Are you getting an RPM signal?

It will still start without out a cam signal. The CKP fires the injectors and the coils.

I'm guessing you are getting spark if it fires when you put some fuel in it.

Do you have power to the injectors when it's cranking? I know you said you do when it's not cranking.