Need Help Missfire Codes!!!!

[OFFROVER]

Got a 96 P38 60k miles w/ P0300 P1316 P0305 P0307 can not get fixed. Replaced plugs, wires, coils, heads,fuel filter, swaped injectors, ecu, good fuel presure, good compresion, new o2 sensors and vacum at ideal is 12-15in-Hg. Also dropped exhust to check cats, ok.
Thanks for any help.:banghead: :banghead:

~Corey

 

[flyfisher11]

And you said business was slow

You might need this guy!

 

[ptschram]

When you were doing the heads, any chance you looked at the camshaft?

Do you have ability to look at sensory input in realtime? Might illuminate things more than a little.

 

[OFFROVER]

They did not see any abnormal wear on the cam. I have T4 but not sure what sensors to monitor or what to look at? I did not do the work another tech in or shop did it and we are at the end of our rope. Thanks for your help PT.

~Corey

 

[ptschram]

You've got something that is preventing the cylinders from firing. I'd start looking for data that is not consistent with a well-running engine.