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No idea on the fuel pressure. Do you know for sure it is out of whack?

How/when did this problem crop up, anyway? Anything tweaked/replaced before it started?

Also, what kind of plugs/wires did you put in? These engines really don't like Bosch plugs, and wires other than OEM or NGK seem to be hit-or-miss.


OK, here's the whole skinny... engine is freshly rebuilt (less than 1000 miles ago). Bored.030 over, with Northwest Offroad header and LC engineering cam. LC engineering dist. and wires. Plugs are brand new OEM (I knew about the Bosch being bad) <img src="/forums/images/graemlins/smile.gif" alt="" /> I sprayed every vacuum hose fitting last night looking for leak, none were found. Adjusting the idle screw to raise the RPM's made no difference. I'm beginning to think that I might be running too lean with all of the engine mods along with the larger bored cylinders. My next step is to adjust the Air flow meter to "richen" up the fuel mixture and see if that makes a difference. Any other thoughts? <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