if u have a faulty Mass Air Flow sensor it will cause ur car to run badly.. if u unplug it it will run better (located on the inlet tube connecting your air box to ur throttle body, but of coarse we recommend u replace it. But as a quick fix can be unplugged.. It doesnt matter if ur plugs are fouled or new if ur not using the right plugs to begin with. If u use expensive plugs designed for motors with more compression the plugs will cause ur car to stumble and hesitate.

can I run it with it unplugged? or just unplug it to test it?

Im relatively sure they used the cheapest plugs they could get. I will try the maf sensor today. Thx

Yes you can run with the MAF unplugged but I wouldn't be getting into the throttle too much (i.e. flooring it a lot)

Found it! Turns out it also had a vacuum line connected to it that was split. My Go-to-guy disconnected to MAF, and it ran a little better. My buddy at the salvage yard came up with an MAF & a vacuum line ... just put them both on...and....it'* better, but now it wants to die when it idles.

I wonder if the new MAF is bad? Try switching back to the old MAF. Sounds like you could be getting some bad readings.

We tried both Mafs, and no maf... neither made a difference. So I let it sit out of frustration. I decided to take it for a spin a few days ago, and now it dies almost everytime I let off the gas. When I got it home, I reved it pretty good... seems like I have no real power. It doesn't vroom like it should (sounds silly, I know.. but do you know what I mean?) I checked the plug wires against the diagrams, they are all in the right order, I'm befuddled!

Here'* what I want you to check. Locate the fuel pressure regulator. It'* on the fuel rail and has a vacuum line on it. Pull that vacuum line off and smell inside that hose. Do you smell gas? If so, your FPR is shot and your fuel pressure is way low. Also, when you shut the car off raw gas will flow in to the lower intake flooding the engine and stalling it out.

K, I will try that too.. but there have been a couple of backfires. And a smell of gas when u are near the car after it'* been running.... I thought the fuel pump would fix that, but it hasn't.

So far what your describing is a bad FPR. When the diaphragm breaks you have a open area between the fuel line and the internal engine. You shut the engine down and the vacuum sucks fuel right in to the LIM and it sits there in a puddle.