I have a 2001 infinity qx4. Same thing as a pathfinder. with the vq35 that is a 3.5L not the 3.3L It is fully loaded 4x4 etc.
I have a brand new transmission installed and brand new engine. I am having a problem with the kick down. I can disconnect the lower plug on the TPS sensor and the car shifts just fine but I the transmission will not kick down a gear for WOT it just bogs down. When I have the plug plugged in The car will shift fine 1-2 then 2-3 will go to red line slam shift. Then 3-4 will sift flare real bad.
I think I have it figured out as a transmission tcm electrical problem. I am looking for wiring diagrams. I have changed the TCM and TPS with several spare parts to no avail.