Troubleshooting Request! [SOLVED] Options

[rave2n]

Hello all. On my way home from work this evening, the cellie died.

I was just taking off after a light, and it started to feel like it was stalling in 1st when the gas about half down. It seems to have recovered and was going alright. Drove normal...til the next light. Did it agian, but worse.

After stalling completely while going 35, pulled over. Had trouble starting up, but would start. Idle was crazy, but tapping the gas you could get it up to 4k rpm easy. That didn't last long either. It started to drop asoon as I hit the gas after that. Now it'll have a really rough start up, then run like crap for about 10 seconds, then just dies.

I checked for any obvious leaks or anything of the sort..nothing. My limited knowledge of engines is a hinderence atm. I do know, you need air, fuel, spark. I have air, I have spark. So, my question is...do you guys think my fuel filter, pump, or injector is bad?

The spark plugs are less then a year old, the only recent thing i've done is got a oil change, and put in LED BA-15 bulbs in my rear lights =P

Any assistance would be greatly appreicated, as right now its sitting in a parking lot of a not so wonderful area. Hoping its something I can fix quickly and available at a local shop..

This post has been edited by rave2n: May 19, 2010 - 4:15 PM

[rave2n]

Well...Here is a break down of what I've done so far...so maybe it'll be easier to get answers.

New NGK plugs
New fuel filter
Checked all fuel line pressure, all with in spec now.
Removed and cleaned EGR Vacuum Modulator Valve

Removed Distributor Cap, and sanded posts down to cleaner surface, as well the arm that hits them. 1 Post is not looking to good, getting new cap soon. Still don't think this is the issue.

Cleaned PCV valve and checked air flow - works
Checked all vacumn lines on throttle body - all correct
Checked EFI relay & fuse- working
Looked for any obvious vacumn leaks - non found.
Reset Air/fuel mixture - twice

Jumped the dianostics E1 and Te1-2 I believe thats the correct ports, don't have my book in front of me. Looked for any CEL codes in normal mode and test mode. None were found.

As it stands, its running better, but thats probally from the lot of things I changed above, but the problem that originally got me on this tangent is still there.

When Idleing, you can watch the RPMs just drop and act like its going to stall, but then recovers. It drops from 800, to 400 or lower, and comes back. Ocassionally if you pound the gas in first, or second it'll hesitate, but go shortly after, almost like its not firing a cylinder (atleast to me it does =P) - Tapping the gas shortly to bring it up, then taking off is normal, no issue. No evidence of this occuring during any RPM past 2.5k.

I'm at a loss now, I have a few more tests i'm going to run, for instance getting a hand vacumn and testing the EGR valve itself, and seeing how that pans our, as well new Dist cap, and possibly new spark wires as well, possibly checking the timing as well. I'm not really looking to get so many new things for this engine, as it was planned to be swapped out, and sold for 400 to someone to use for a dune buggy...lucky for him.

Any help at this point would be greatly appreciated