Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
Oversize Tyres and CCF
Hello,
I'm using 265/65R18 Cooper tyres,but car computer show me wrong fuel calculation and speed also wrong. I'm sure gear system also wrong calculate something. Any idea how can I see and adjust to the correct value ?
Regards
15th May 2015 8:30 am
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Not a great deal you can do with the D3 trip computer to make it truly accurate as it is not adjustable like the one in the D4.
Usually installing a bigger rolling circumference removes some of the speed error built into the system, but there is a stored value in the CCF. The rolling circumference is a 'sensitive' parameter as it is used by the ABS and checked against other stored CCF values. Your IIDTool cannot adjust it, well not just yet.
It will be added to the tool in due course. When it does it will look something like this:
Click image to enlarge
Hope this helps.
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
I'm waiting Beta FW I'm also beta tester before Patrick sent me a beta firmware for my Smog Sensor and working perfectly. I hate wrong calculation and also speed.
Regards
15th May 2015 9:08 am
btekcan
Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
Any news about this feature ?
Regards
17th Nov 2015 4:17 pm
btekcan
Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
Any news about this feature ?
Robbie wrote:
Not a great deal you can do with the D3 trip computer to make it truly accurate as it is not adjustable like the one in the D4.
Usually installing a bigger rolling circumference removes some of the speed error built into the system, but there is a stored value in the CCF. The rolling circumference is a 'sensitive' parameter as it is used by the ABS and checked against other stored CCF values. Your IIDTool cannot adjust it, well not just yet.
It will be added to the tool in due course. When it does it will look something like this:
Click image to enlarge
Hope this helps.
17th Jan 2016 12:29 am
btekcan
Member Since: 24 Dec 2014
Location: Istanbul
Posts: 201
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