i was running to the store when i noticed somthing strange. i have
on the scangage and only the MPG and MAP worked. i've tried all of the scangauge gauges and all work but the FPR but thats b/c it's not suported. so it was strange when these didnt work. i have dissconected the battery and this is the first i drove it after that. i even tried diffrent combonatons and LOD, TPS, IGN, and FPR. the PID is set to ALL and i'm running ISO. i dont wana unplug it b/c i dont wana erase the tank and other memories.
Unplug it anyway - the tank info stays unless it really crashed bad and lost it already. The only down side is that it "detects" the power loss and will show an * when you do the fillup. Can't remember if the total fuel used is kept or not - I think it is. Not much more you can do - only advice is to NOT play with the buttons AFTER you turn off the ignition ESPECIALLY after just turning off the ignition.