Help!!!

[fire4x4fighter]

I have a 1990 toyota 4 runner 4 cylinder 22r will start right up as soon as you turn the key, will run for about 4 seconds and cut off, I can crank it back up right away it will start 4 seconds it cut back off!! PLEASE HELP!! I have already check to make sure i am getting fuel. not sure what else to check can it be a vacum or a sensor?

 

[Lil Red Yarder]

Check your injector grounds. they are connected to a intake/plenum bolts. just went thru that putting mine back together.

 

[fire4x4fighter]

do you happen to know where the fuel return hook up to the engine? i have looked all over and can't find a spot for it. I am helping putting this thing back together and dont know much on these.

 

[SV_Dude]

There's two fuel lines on the fuel rail. The one closest to the radiator is your fuel pressure line that feeds your injectors. The fuel line on the rear of the fuel rail is your fuel return.