07 Silverado LBZ Fuel gauge

[Trippin]

The larger tanks will not affect the fuel gauge as they generally don't make them any deeper just longer.

What will be affected is your DIC as far as a distance to empty reading.

[tbrduc747]

I took delivery of my truck in Jan 2006 and am not sure of the orginal OS as I have had it in a couple of times for issues. Glow plug issue. Program issues with using the block heater. I think that the computer has ben updated a couple of times. I am currently at OS 12616698. I can see and update the fuel sensor table.

If you aren't up to the latest OS can you take the latest OS off of the library and reprogram your computer or are you missing something that isn't captured in the program? Perhaps someone more experienced with EFI can answer that.

In response to Trippin's comments about the tank being longer and the fuel sensor not needing to be updated I thought that there were other posts about the benefits of being able to recalibrate the sensor unit to get the correct reading on the guage.

We do we need to update the DIC??

[kds4791]

tbrduc747,

Thanks for the reply!!
My delivery date as well was January 2006, and I also had the glow plug reflash, but the O.S never changed. When I look at O.S upgrade tab it says that it is not supported.
Like you said, maybe someone with more experience will chime in. It would be nice to have the DIC working properly.
My Transfer Flow tank is about an inch and a half to two inches deeper than the stock tank. The first part of the gauge seems fine, but when the light comes on there is about 10 Gallons of fuel left.
Two other trucks I have adjusted the gauge on seem to be a little more realistic after the adjustment.
Thanks again for all the suggestions KDS