07 Silverado LBZ Fuel gauge

[ntae]

Hi i have a Silverado come in the shop its had a bigger fuel tank fitted could any one give me some info on calibrating the fuel gauge , is the calibration in the dash or engine controller ?

Geoff

[ChipsByAl]

If the truck is the old style PCM, the calibration is in the PCM.
Is this new fuel tank a factory unit? If so some factory settings would be available in a like vehicle. If not you could start with the size of the tank. The sender if not stock needs to be compatable with the stock sensor output. If the tank has already been installed you can add fuel and check the resistance output of the sender and chart it to help working the tables.
Al

[GMPX]

Geoff, I think it is in the ECM, but we don't have any tank calibrations in the LBZ, you are the first one to ever ask, I would not have thought the request would come from an Aussie!!

Cheers,
Ross

[ntae]

Its comming back in two weeks for me to have a play after the exhaust & intake has been fitted

the list for me so far

Fix the fuel gauge
Fix the speedo
and tune

the OZ people who import them tell me there is not way to calibrating the fuel gauge so far out there . Ross if you get time it could be a first in the lbz world for efilive

[tbrduc747]

I was playing around with EFI today with a stock LBZ file from the library and noticed that there are no fuel cal file for the LBZ. I am getting EFI next week and in the near future would like to add a larger tank. It would be great to be able to recal the gage.

There was a good post on the Diesel Place about how to do this for a LLY.

Thanks.

[tinman22]

X2 i'd also like to add a larger tank to my truck and could use the calibration

[GMCfourX4]

X3.... I was bummed when I found out that it isn't available for LBZ after reading how the other DMax guys did it (my MPG is WAY low too, I wanted to correct that as well)

[tbrduc747]

In the latest verion of EFI there is now a table available for the fuel gage.

F0101 Fuel Level Sensor Primary

[GMCfourX4]

Excellent, I haven't spent much time with the new version yet... Any update on the DIC stuff (specifically the MPG calculation)?

[kds4791]

The cal. files are available for the late operating system LBZ, but the early operating systems don't have that option.
I did the change on a couple of the late systems, but of course my truck is the early O.S. It would be nice if that option were made available to the early's also.
Thanks KDS