i recently picked up a 1995 z28 not running. it will start with a little shot of either and runs a few seconds then cuts right back off. i checked fuel pressure and its got and holds at 41psi, put a new battery and checked all my fuses. anyone got any ideas from here

 

Either? You must mean ether.

Check the injectors for operation with a noid light and/or for actual spraying. You don't give any details other than "not running", so there is no real history or background for anyone to form much of an opinion. Wild guessing is not going to be very helpful.

 

well..... the car wont crank it only will run off of ether like their is no fuel there... i checked fuel pressure and everythings there is good up to the rails

 

Well, it fires on ether so you must have spark. That means the opti signal is getting to the PCM. Do as Shoebox suggests and test for actual injector operation. There are two steps...one, use a noid light to insure that the injectors are getting th signal to fire and, two, pull the fuel rail...complete with injectors..and see if they actually spray fuel when the engine is cranked. Obviously you don't have to do step two if step one shows no signal...

 

Have you scanned it for codes?

 

By history or background I mean what led to the "not running" condition. Still no more details than the first post. The more information, the better the help.

 

well i got the car from some kid and his mom here locally and they said that it blew a head gaskit and had a bad radiator so they fixed it and it ran fine for about 100 miles then it gave up.....but thats just what they told me so i really will never know what really happened with it i was just doing some small tests before i go out and bye a 300 dalla "arcy"spark

 

check the codes. If the injector is disconnected and the engine is started, trouble code 18 will set and there will be no injector pulse once the code is stored. If you clear the code the injectors should work (if that was the problem) That is common on cars that had work done and someone forgot to plug injector harness and tried to start the car. Just a simple quick check. fuse 9 and 10 under the hood is the injector fuses

 

yea i got a noid light today and i hsve no signal shoe box

 

Was there any codes in the computer. Check for power on the injectors. with a spike light or voltmeter.

 

i think it might have thrown that 18 code while i was testing with the noid light i dont have a scan tool so i will have to wait till tomorrow to see what code it is

 

if it has code 18 the computer will shut down the injectors. Plug everything back in and clear the codes. The car will not start if that code is there. Clear the code with a scanner just to be sure. If the code comes back i will get diag info for you

 

I think he meant he got code 18 because he unhooked the injectors while using the noid light. Not sure how he determined that, if he doesn't have a scanner.

 

man i got full coverage time to start a campire and roast some marshmellows