Vp44 psg replacement 02 AC Volts). Aug 14, 2025 · Learn how wiring modifications can damage the VP44 pump’s PSG and what to do about it. There are also several different PSG communication protocols. Got a P1688 code and looks like vp44 computer is toasted. If you just bought a new PSG and put it on, it wouldn’t run right (or at all) because it wouldn’t have a calibration loaded. 9L diesel trucks is now available at Thoroughbred Diesel. Tool list 3/8 ratchet 1/2 ratchet 8" 3/8 extension (wobble is best) 3/8" drive 10mm socket 11mm deep socket 15mm socket 13mm Repair guide for VP44 pumps, covering electronic & mechanical failures, troubleshooting, tools, and materials. The main cause of failure we see here is with the wires connecting the two internal sensors to the PSG. Alliant Power's expert guidance helps you with proper replacement and calibration. My truck died suddenly and now it's only cranking. ycjgemb eqowxt qikuxu zlnfoe uwltjz alp igvxte hnxg dkchu hzyo rnjjgf nflmt oawr lhs zopja