Author Topic: Max temperature in Megatune and LCD  (Read 14950 times)

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Max temperature in Megatune and LCD
« on: April 30, 2007, 05:53:26 pm »
Hello!

With scare I find that coolant temperature readings in Megatune and LCD sticks at 102C although in real teperature goes higher  :o

Why? How to fix it?

I remember Megasquirt was same isue. But with simple editing cltfactor.ini for Megatune was possible turn things right. At tuning this is vital information!

Gints.
« Last Edit: April 30, 2007, 06:33:01 pm by GintsK »

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Max temperature in Megatune and LCD
« Reply #1 on: April 30, 2007, 06:53:49 pm »
I've just checked the vemsv3.ini file and its set to read upto 110 with a warning colour change at 105c.

I'm not sure why you're having this problem - is your unit set up for the correct temperaure sensors?

Rob

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Re: Max temperature in Megatune and LCD
« Reply #2 on: April 30, 2007, 07:10:31 pm »
I have running standard 1.1.22 firmware with default NTCs. Both my temperature sensors read slightly more than actual. Say 5-7deg I think. Both are BOSCH reading 2057Ohm @25C IMO.

I use Megatune from VemsMT1.1.12-pre package.

Note LCD have same: 102C margin.

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Max temperature in Megatune and LCD
« Reply #3 on: April 30, 2007, 07:23:56 pm »
Shall we file a bug-report for this?

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Re: Max temperature in Megatune and LCD
« Reply #4 on: April 30, 2007, 08:04:13 pm »
Shall we file a bug-report for this?

Before I can make bench test on another board to be absolutely sure.

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Re: Max temperature in Megatune and LCD
« Reply #5 on: April 30, 2007, 09:32:59 pm »
Just make bench tests with two different firmwares: 1.0.3x (sorry do not record - was loaded from purchase) using Megatune from VemsMT1.0.53 package and 1.1.22 using MT from VemsMT1.1.12-pre.

In both cases temperature readings sticks at 102C in Megatune and 101C on LCD. LCD seems have 2deg step and indicate ~1deg lower than Megatune.

In addition -  IAT act in same manner.

Gints.

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Re: Max temperature in Megatune and LCD
« Reply #6 on: June 03, 2007, 10:19:08 am »
bump :-\

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Max temperature in Megatune and LCD
« Reply #7 on: June 03, 2007, 02:46:53 pm »
Theres work going into the temp sensor range at the moment.

Offline Tony C

  • Hero Member
  • *****
  • Posts: 650
  • BHP: 8
    • Capriracing
Re: Max temperature in Megatune and LCD
« Reply #8 on: June 17, 2007, 11:17:23 pm »
rob mine reads 102 sometimes when at idle
i think i posted about this a while back in another post.

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Max temperature in Megatune and LCD
« Reply #9 on: June 18, 2007, 09:30:48 am »
Do you know the water temperature to be different to 102?

Offline Tony C

  • Hero Member
  • *****
  • Posts: 650
  • BHP: 8
    • Capriracing
Re: Max temperature in Megatune and LCD
« Reply #10 on: June 18, 2007, 09:45:27 am »
i will put a probe in the water tank next time shes at idle,

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74