aa8jzdial Posted January 5, 2010 Share Posted January 5, 2010 I recently swapped trannys on my 99 Forester. The original tranny / vehicle had a 3 wire pickup. The scrap yard tranny now in the vehicle came with a 2 wire pickup. I am not sure what vehicle it came from. Someone else found it for me. Works fine except for no speedometer. The 2 wire pickup has a drive link that resembles a flat screw driver blade. The 3 wire has a allen head link. The 2 wire puts out an ac voltage when spun. Magnetic pickup I assume. Lead to lead resistance is about 3-4 ohms on an old analog ohm meter. (all I had at the time.) The 3 wire resistance readings are higher. Can't recall exactly. 2 wire is self power, mag pickup? 3 wire is an active device requiring 5 or 12 vdc to energize? Can I McGuiver an interface circuit to use the 2 wire sensor on the 3 wire ecm module input? other options? This is not a crisis but the wife drives the car for work and get paid mileage and she is not happy. go figure. tnx r Link to comment Share on other sites More sharing options...
Legacy777 Posted January 10, 2010 Share Posted January 10, 2010 Can you pull and swap the two sensors, or is the connection inside the transmission preventing you from doing that? Link to comment Share on other sites More sharing options...
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