Been struggling to fix a couple annoying things but found a solution for this one.

Had problems initially with the outside temp displaying in Celsius, a new air temp sensor in the hood fixed that. This problem also happened around the same time - the "distance remaining" value that you can toggle through would just display E01. Over 200k miles now so I figured I'd live with it.

Bottle of Techron fixed that, and 2 fill-ups later. I just used the regular type not the high mileage. Topped it off completely the 2nd time and bam- back to working within a mile of the gas station.

Does anyone know where it reads from? I thought I'd read there was a sensor on the #1 fuel injector so maybe it cleared the build-up.