STILL WON'T START! HELP!!!
This is what I've done up to this point. I started with the most basic things I could think of. The most odd sign is that I can hear the fuel pump priming, but it doesn't shut off after 2 or 3 seconds as it usually does. As long as I have the key in the on engine off position the pump keeps priming (making that whine/hum sound). I thought it was a failed fuel pump relay so I replaced it but the one I got from Advanced Auto parts was crap and even when I took the key out the fuel pump stayed on. So I put the original back on and it stopped with the key out. Everything I've checked so far:
1. Siphoned out old gas. Put in new/clean 93 octane.
2. Test fuel pressure at the shroeder valve. I got 40-42psi with key on position and 38-40 while engine cranking.
3. Replaced fuel filter.
4. Replaced fuel pressure regulator (that was one hard piece to get to, I had to remove the throttle body, maf ducting, loosen the fuel rails, disconnect the heater core hoses just to make room for the hex tools and my hands to loosen the FPR!)
5. Replace battery (wasn't holding charge).
6. Cleaned carbon deposits from entire throttle body area.
7. Tested injector wiring harness for voltage (good).
The spark plugs are completely dry and the engine just keeps turning over. It does start and run with starter fluid until it burns up, then dies. So apparnetly I have fuel up to the pressure tester valve but it's not coming out of the fuel injectors. Is there a fuel injector relay or fuse? I've checked all the fuses and they are all fine. Could this be a bad sensor confusing the computer? I was told there was a fuel injector relay above the EEC IV, but I didn't see one and no parts stores carry a replacement. Has anyone ever heard of the fuel pump failing and still working (priming)? Could this be a vaccum issue? If so how do I test/check for vaccum pressure?
I've ordered a Code reader so I'm waiting on that. Next step will be replacing the fuel pump (I'm going to be pissed if I spend $100 and drop the tank and the car still won't start). After that I'll be at a loss.
HELP!!!!