There's a schrader valve on the fuel rail by the fpr. All you need is a fuel pressure gauge and it'll tell you what the fuel pressure in the rail is. That will tell you if there's enough fuel going to the injectors to start the vehicle. Then, if the fuel rail has enough pressure say 50psi or so, then I'd check the injector wiring to see if when you go to start the engine that the injectors are getting power. Basically, hook up a multimeter in voltage mode and read what happens when you try to start the car. It should very quickly alternate from 0 to 5v when you try to crank. you can rent fuel pressure gauges from any autoparts store. They also cost like $20.Originally Posted by jetfighterv
If the injectors are getting voltage and there's good pressure on the fuel rail, then check the spark. Easy way is remove a spark plug wire, take a long screw driver and touch it to ground (upper dogbone mount works well), on the shaft, hold the spark plug boot very close but not touching the screwdriver. Have someone crank the car. You'll see the spark ark to the screwdriver if you have spark.
Using these two tests you can isolate the issue to fuel or spark and troubleshoot from there. Once you determine a path, troubleshooting gets much much easier.
