Ok. So my pathfinder died on the side of the road. Limp mode. Would run on occasion but soon stall out. The coolant temp gauge was maxed out cool.
2 dtc p0605 and p0118
pcm rom fault and engine coolant temp high circuit.
So the before it was brought to the dealership. Replaced the ect sensor. Didn't fix it. Dealership said it needs a pcm.
remanufactured and pre programmed pcm was installed. Still didn't fix it. I found it would run good with the temp sensor unplugged. Later got a used brain and ignition from a good running wreck. This set up after installed had the same results. After this I investigated the abs,slip and vdc lights. They had been on but I assumed they were on from the engine light. So I pulled the abs fuse and... wow the engine runs flawlessly and the engine light is out. The temp gauge is working with that abs fuse removed...then replaced abs module still having the problem. When the abs fuse is re installed the temp gauge drops to cold and the engine stalls. any help would be appreciated this has me and the dealership stumped. All aftermarket items,radio and the reverse camera have been disconnected. Also the remote starter.