Fuel Gauge

They go by many names, P01, P59, VPW, '0411 etc . Circa 1999 to 2006. All VPW OBD2 PCMs.
User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Fuel Gauge

Postby yoheer » Thu Nov 19, 2020 5:16 am

Fuel gauge shows inverted info after OS change to 12587603
When the tank is empty it shows full and vice versa.
Ideas?

Site Admin
User avatar
Posts: 6395
Joined: Sat Feb 28, 2009 8:34 pm

Re: Fuel Gauge

Postby antus » Thu Nov 19, 2020 8:50 am

Likely the fuel guage calibration table needs to be updated with the data from the old OS.
Have you read the FAQ? For lots of information and links to significant threads see here: viewtopic.php?f=7&t=1396

User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Re: Fuel Gauge

Postby yoheer » Thu Nov 19, 2020 6:00 pm

Old os is 405 and I cant view it with tunerpro

User avatar
Posts: 763
Joined: Sat Dec 15, 2018 7:38 am

Re: Fuel Gauge

Postby Gampy » Thu Nov 19, 2020 8:30 pm

From your STOCK_2003 Tahoe 12579405.bin posted in the VATS delete thread.

100.000000
99.003906
84.902344
73.769531
64.003906
54.863281
45.703125
35.898438
24.902344
11.308594
0.000000

If that is not the correct bin, let me know.
Temporary is a permanent problem!

User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Re: Fuel Gauge

Postby yoheer » Fri Nov 20, 2020 3:53 am

Thank you. How did you read it?

User avatar
Posts: 763
Joined: Sat Dec 15, 2018 7:38 am

Re: Fuel Gauge

Postby Gampy » Fri Nov 20, 2020 4:41 am

Don't plug it in yet!

I'm not sure that is the right information now that I'm looking deeper ... It appears there is more then one set of values.

I just did the same procedure on OsID 12587603 and compared that to TunerPro using 12587603.xdf and got different results, it should be the same.
Maybe my procedure is flawed!

Maybe a REAL tuner will step in here and save my behind!
Temporary is a permanent problem!

User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Re: Fuel Gauge

Postby yoheer » Fri Nov 20, 2020 5:29 am

What software do you use else? I think I have to buy some other software, not only tuner pro

User avatar
Posts: 763
Joined: Sat Dec 15, 2018 7:38 am

Re: Fuel Gauge

Postby Gampy » Fri Nov 20, 2020 5:56 am

Ok, pretty sure I got it.

In TunerPro under tables, find 'Primary Fuel Level Vs Fuel Gauge Sender A/D Counts', inverting that table should be the ticket.
The actual numbers appear to be the same on both Os'es just inverted of each other.

My tools are not for sale, but I will happily use them to help anyone I can ... for FREE!

I require one simple thing for my services ... A smile on your face!
I take it personally if I do not accomplish that goal.
Last edited by Gampy on Fri Nov 20, 2020 7:15 am, edited 1 time in total.
Temporary is a permanent problem!

User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Re: Fuel Gauge

Postby yoheer » Fri Nov 20, 2020 6:09 am

Gampy, u,re a man among men! Thank you. :D

User avatar
Posts: 33
Joined: Sun Sep 06, 2020 10:04 pm

Re: Fuel Gauge

Postby yoheer » Fri Nov 20, 2020 7:02 am

One more question. This table is only in advanced xdf file.
The columns are called Counts vs gal
Counts 0-256
Gal becomes zero at 128. Do i need to invert Gal values from 0 to 128 or i need to invert it to 256?

Next

Return to GM LS1 512Kbyte and 1Mbyte

Who is online

Users browsing this forum: No registered users and 1 guest