Ok where do I start.... well I know where to start, so where do I go from here

92 Z, 383 Super Ram running Dynamic EFI EBl P4

Vehicle is not starting. It is rarely driven. Over the summer I drove it to work one day and it was great, Leaving work it wouldn't start at all. I ended up coming back with my trailer the next day and it started just fine to get on the trailer. When it runs it has no problems running, does not stall or anything like that. Fast forward to this weekend and I got done upgrading my fuel pump, drove it around yesterday with no problems. I wanted to drive it work today and it wouldn't start this morning. Still not starting tonight.

Does not even try to kick over, just cranks and cranks and cranks. Oldest part in any of the ignition system is 3 years old and less than 2k miles. Honestly that description goes for every sensor. Fuel pump is brand new Aeromotive Stealth pump and priming just fine.

Plugging my laptop into the Dynamic EFI computer the readings I get with just ignition on seem normal. Not sure where to look.

 

Were this mine (Sweet lookin car, BTW!) I'd start with testing for spark with one of these spark tester tools, and then a fuel pressure check if the spark checks out good ("New" doesn't always = "perfectly functioning", especially nowadays considering where most parts are manufactured). If the fuel pressure is actually OK, a noid light would be next up on the list

 

I decided to dig out my pressure gauge and throw it on but I am not sure exactly what it's telling me, If anything since it isn't running. I forget what I set it at originally (I think around 50psi) but that at least tells me it has pressure. I would have expected it to drop when it was trying to start, so without it dropping would that say that the injectors aren't firing?

 

Hi 86FyrBrd, That's great that you have fuel pressure, and I'm not sure if it should drop much while cranking. So now it's down to likely being spark or injector pulse. Do you have a can of starting fluid? Perhaps remove the rubber bellows from the throttle body, open the throttle plates, give it a couple second squirt, then quickly put the rubber boot back on and try to start it. If it starts for a few seconds & dies, yeah your likely looking at an injector pulse problem. But if it don't even try to fire then I'd be looking at the ignition system, starting with a voltage check on the wire feeding power to your distributor/ignition coil.

 

When the no-start condition is present, that's the time to check the spark. Take off a spark plug boot, stick another plug in it and hold the plug body to ground while someone cranks the engine. Then see if you're getting spark jumping the electrode gap.

 

Guess I’ll pick up one of those in line spark testers on my way home from work tomorrow.