| Were you running a single MAF/dummy MAF on your original dual intake & did you have a modified tune to suit ? There's two possibilities for the creation of a lean mixture : a) too much air b) not enough fuel Fitting a MAF translator does NOT alter fuel maps (AFAIK), so the fuel delivery is unchanged. That only leaves the "too much air" alternative. Unmetered air is the obvious culprit. That's why I suggested the possibilty of the vacuum leak being eliminated during the fitting of the translator.
"If you own a 300zx, you don't have time for a hobby" "If you own more than one 300zx, you don't have time for a life" |