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I would Also check all of the Ground Connections, Especially the one that attaches to the Intake maniflold. If I Recall, that one grounds the injectors to make them fire. Also make sure your TPS is working and is "set" right. If you put a timming light on it and see where it is at idel, then give it alittle bit of gas it should instantly advace. When my TPS wasn't set right it the Timming would retard for a split second, then advance. I would also make sure that all of the EGR components do not have any exhaust leaks.

I'm just trying to come up with stuff that hasn't been mentioned that might help, or lead somewhere <img src="/forums/images/graemlins/zombie.gif" alt="" />

Good luck,
GOI <img src="/forums/images/graemlins/kewl.gif" alt="" />

I did verify timing with jumper in place. Set it at 8 degrees BTC. This is the recommendation for the cam in place. Now, I didn't check it without the jumper in place to see if it advances quickly off of idle (partial throttle). I can try this test.

'86 4x4 SR5 22re 5" lift 35" BFG's and 5:29 gears.
'05 4x4 DC Tacoma TRD Sport