So about 3 years ago the fuel gauge in my 2004 LS170 started acting weird. I talked to my local dealer and they said to take out the fuel assembly in the tank and clean the slides the float rides on. Did the cleaning and it seemed to work for a day or two but it came back. I have been just running it and watching my fuel levels. Now I have been noticing that the engine temp and hydraulic temps on the eic are reading cold even after running for an hour. Sometimes they will show the temo but most of the time it wont. Do I have an EIC going out on me or is there something else?