90 vs 91+ evap emissions system
I am installing a 1991 plenum, air horn & throttle body on a 1990 engine. There appears to be a difference in the evap emmissions systems on the two models. The 1990 has the cannister purge solenoid next to the cannister & the 91 has it under the plenum & I can't locate the ported vacuum fitting under the throttle body. I think I can remove the 91's vac plumbing from under the plenum & hook up the 90's purge line to the plenum fitting. The question I have is the ported vac line. There appears to be a boss on the bottom of the air horn that coould have been for a ported vac source? Can I drill & thread a vac fitting to provide the ported vac?
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06-25-2006
Threaded Mode