Are you missing anything besides injector spray? Engine cranking, do you have spark at the plugs? Any applicable trouble codes? Use a gage and check proper fuel pressure. Did you check for voltage and ground at the injector/s? If computer doesn't see rpm signal, it won't pulse the injectors.
November, 4, 2012 AT 11:03 PM
The fuel pump psi is good 50 to 60 psi it have voltage at the injector but no ground I have spark at plugs it will start if I put gas in the t body
November, 5, 2012 AT 2:56 PM
Hi, if you have tbi fuel injection that pressure is way too high. For tbi fuel injection, the fuel pressure should be around 10 psi.
December, 8, 2012 AT 12:20 AM
I have a 1990 chevy van that did that to me and it was the oil psi sending unit. Come to find out the computer checks for oil psi for 2 milasecions before it will let gas to the injectors.
January, 8, 2013 AT 7:35 PM
The op switches I've seen, on gm, are just a redundant power supply to the pump. The circuit is parallel to fuel pump relay. If the fuel pump relay is functional, the op switch can't kill the vehicle.