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Still no luck for me. Might have to attempt fuel pressure check? What about removing the vacuum line going to the fuel pressure regulator? Would that do anything?


Try bypassing the VSV that feeds the fuel pressure regulator:
http://www.4crawler.com/4x4/CheapTricks/22RE_Engine_Pix/8.html

[Linked Image]


OK, we might be getting somewhere here. Tuesday, I was able to spend some time troubleshooting and noticed a marked decrease in the misfire when I pull/plug the vacuum line off of the fuel pressure regulator. Now, when I plug it back in, the idle speed drops a bit (as the manual says it should). But, is it a problem if I leave the vacuum line off/plugged and run the truck for a period of time? Don't know if the increase in fuel pressure is going to harm anything. <img src="/forums/images/graemlins/confused.gif" alt="" />

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