Author Topic: battery calibration  (Read 8163 times)

Offline Seight-v8

  • Sr. Member
  • ****
  • Posts: 339
  • BHP: 6
    • Members Page - Scott Richmond
battery calibration
« on: October 24, 2009, 05:03:34 pm »
hiya all,

Should i be worried about this setting, its at 187.

What does it mean/do?

thanks

scott
Engine:Rover V8 4600cc
Vems Firmware:V1.2.38, GPS, SDcard, LCD & Dual lambdas, Wasted spark, 36-1 trigger, Cam Sync & Bluetooth serial.

http://www.vems.hu/wiki/index.php?page=MembersPage%2FScottRichmond

Offline dnb

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 837
  • BHP: 19
Re: battery calibration
« Reply #1 on: October 24, 2009, 10:02:48 pm »
The VEMS needs to know battery voltage so it can scale the injector pulsewidth and coil charge times appropriately.
Look at the volt meter in megatune and compare this to the reading from a multimeter across the battery.  The battery calibration is to adjust the voltage reading - 187 should be about right, so it's most likely safe to not worry too much.

Offline Seight-v8

  • Sr. Member
  • ****
  • Posts: 339
  • BHP: 6
    • Members Page - Scott Richmond
Re: battery calibration
« Reply #2 on: October 25, 2009, 11:09:32 pm »
david,

cheers.

Yes i gathered it must have been something like that, had already checked it and it was within 0.25v of the true reading.

was just making sure.

scott
Engine:Rover V8 4600cc
Vems Firmware:V1.2.38, GPS, SDcard, LCD & Dual lambdas, Wasted spark, 36-1 trigger, Cam Sync & Bluetooth serial.

http://www.vems.hu/wiki/index.php?page=MembersPage%2FScottRichmond