Car won't start!
 

Yesterday i took the exhaust system off to weld in my LC-1 and did a scan with EFI Live. I had the key in the "Run" position for about 20min. Later that evening i started the car and it ran for a minute then i shut it off. Then later that night i tried to start it again dut it dosen't start. Does anyone know what the hell happened? I know i am getting spark b/c i checked it. I know i am getting fuel b/c i have a fuel pressure gauge. (Could i have messed up the 02 sensors ?)

Anyone

does it turn over when you turn the key?

Yes. It does

If you get someone to crank it over, you should be able to feel the injectors to see if they are clicking or not. All you need is spark and fuel, you're just missing one.

Check all your fuses, its cheap and easy, then get back to us.

I know that i am getting spark and have checked all the fuses (the 2 fuse blocks under the hood and the fuse block behind the drivers door). The only thing left is fuel. Is there a different fuse for the injectors somewhere else?

My Z used to intermittently crank but not start. It ended up being a faulty relay under the hood "IGN 2" I think it was. It wouldn't set any codes and everytime I took it to the dealership it would start right up and they couldn't figure it out. It took me almost 2 years to replace a $5 relay and fix the problem.

Dam that sucks. I might have blew some relays. How do you tell if a relay is bad?

You can stick your finger on the top of it and feel it click on. The relay that kicks the fuel pump on for a few when you turn the key on should give you an example.

Best idea would be to swap some out with a buddies car so you don't have to buy a whole bunch of them.

I got the car to start this morning. I guess the plugs were fouled out somehow! It ran like s##t. I still think when i had the car in the run position for 20min. it leaked fuel past the injectors. I think that there are some plugs fouled out still.

Then your injectors are junk. Check your fuel PSI for one. I don't know of a way to test injectors without a tool. Not something you would have lying around your house...

I have a fuel pressure gauge in the car and i did notice after i shut the car off it would drop a few psi. The fuel inj. are aftermarket pieces but just have to find out what size they are and get some new ones. Is there a way to find out what size they are?