[pear69]

The fuel pressure is 52 psi. When I rev the engine a little it goes up to 58 psi and then return to 52 psi. The pressure never dips below 52 psi (like when I rev the engine). I just put in a new fuel filter and no change. I changed the stinkin' fuel tank (because it was leaking) along with the fuel pump about a year ago. This is starting to bring back a few nightmares and headaches I had doing that job...
How can I test the fuel pressure regulator? It is located under the upper intake manifold.

The coil spark is good but it not consistant not totally blue like it should be....We're gettin somewhere---I am looking at my wiring diagram and I see that the 12v feed that feeds injector 2-8-6-7-and 5, also feeds the 12v feed to the coil as well as the 12v feed for the crank sensor. As I recall a few years back I had a problem with the crank sensors' wire -- it burned on the exhaust manifold. I fixed it, but maybe it has become corroded or damage. I'll check it after the Daytona 500 tomarrow. Do you think that if it is corroded or damaged that it could put enough voltage drop on the circuit to cause a misfire condition??

My scan tool is not capable of setting the cam retard spec, but the dealer set that when I had the crank sensor relearn proceedure done..He said it is at +/- 4 degrees..I think the spec is +/- 6 degrees..There has never been a DTC that indicates that the timing is off..