Won't start
 

Ok, just installed a new engine and it wont start, it cranks but won't fire. It ran fine before the new engine. It is a 1998 camaro ss with a 1999 firehawk ls1 engine and a vortech g-trim. I can't hear the fuel pump priming and I was wondering if that's the issue but why would that have anything to do with it since I never touched the pump during the new engine install? My injector and coil harnesses are plugged in correctly and the cam and crank sensor are plugged in correctly.

Check for fuel or spark first. If its not getting either, its not starting. Could be a coincidence.

If you don't think the fuel pump is priming grab a 6" piece of wire and jump the relay, you should hear the fuel flowing if the pump is working, if fuel checks out then check spark.

I'm assuming you installed a new fuel pump to go along with the vortech, check the wiring and or wiring harness.

Car had the vortech previously so the only thing that was changed was a new motor was put in. There is an external vortech fuel pump and I hot wired it and it was whining but still wouldn't fire up.. very strange because it pops and wants to fire with starting fluid.

If it wants to start with starting fluid, its not getting fuel. Check your wiring on the external pump

Yea I did the external pump isn't going on.. I hot wired it to a battery and it kicked on but the car still wouldn't start.

did you forget the ground wires that bolt behind the cyinder heads? if so the injectors wont fire. ask me how I know:D

There's just two right? I remember bolting those back on the cylinder head while the motor was going in..

fuel at the rails and ground wires plugged in. Still no fire up.

are the rails presurizing when you turn the key?

When the pump was hot wired the rails had pressure, but no fire up..

I had the same exact problem before and it was a ground wire. check every wire very carefully. Ill bet thats what it is. im trying to remember where the wire was from on mine. I know it dident have an end on it and I touched it to the rail and the car fired up. just dont remember if the end got ripped off on me and it was a rear head one or somewhere else.

Yea could be it.. I do remember installing the two ground wires on the back of the head while the motor was going in but maybe I missed something..

I have a 98 z28 i just put a 6.0 in and i know for sure theres 3 ground wires on the back of the cylinder head of my harness. Also something that can happen out of the blue, check the fuel filter if its clogged it wont start. One more things is if it is getting fuel it could be flooded. Hold the gas pedal to the floor before starting then try and turn the car over. This cuts the fuel off and it should fire.

Thanks ill look into that stuff..