Evening:I had the same on a 97 3.0 liter, stumbles coming off idle/stall/surge etc etc...replaced the MAF sensor , all is good now. What i found was that the "bad" maf has a ohm reading of 93kohm across the two signal leads.One colored tan and one blue[ black and red wires are power supply] they both have a black tracer along their lengths. And the good senso has a reading of 3.5kohm. The high reading was after cleaning of the sensor, so i don't have the reading of before cleaning to give you. This is how i decided on using one from a junker,found one that had the exact series/part number as what i had,so it would fit my housing and checked the ohm readings before buying. Hope it helps.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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