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On the subject of; fuel injectors, I have been having some proublems myself ! First off, does anyone know what the spray pattern should look like, on 91 explorer injectors ? My injectors have a four hole pattern and under 35lbs pressurized cleaning, using BG-K44 as the primary cleaner, they dont...

Thanx, that makes sense ! But, here's the deal, called our parts house this mornin and they have no listing, for a map sensor for the 91 reg. or Eddie B ! Wondering whats up with that ! Gonna try Advance tomorrow, see if maybe they have one !

Thanx, for the info on the Map sensor ! I have a 91 Explorer and the truck runs great, but my gas milage stinks resently. I replaced the HEGO sensor and thats when the gas milage went down the drain ! A friend ask if I had replaced the MAP sensor and I said no, so I looked up its location on...