I will apoligize first and then give my advice. I didn't read the whole thread so if this has been suggested forgive me.

What about the ECM? Have you tried a different ECM? Just a thought if you have access to one or someone lives near you with the same truck. Just plug the new one in and see how it acts.

A gun in the hand is better than a cop on the phone.

98 Passport 33's, Supercharged, Calmini Bumper, rockbars, diff drops, Teralows, 4.77's, Aussie and ARB lockers, Safari snorkel, Optima red top.