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Cannot change Tyres Size with Forscan
Posted: Tue Aug 21, 2018 8:22 pm
by tienbamboo
Dear all,
I tuned AT/BF Goodrick Tyres 265/75/R18 for my Ranger
I changed in BdyCM 726-12-01 xxxx 09AB xxxx with Forscan
But appeared Check engine indicator and DTC P0700 in PCM, and I cannot reset or relearn PCM.
What can I do? Thanks
Re: Cannot change Tyres Size with Forscan
Posted: Tue Aug 21, 2018 9:22 pm
by RossPat
Did you do a save of the default values before you changed it?
You should be able to do a restore.
If you didn't, Stewart is the one to help you.
Re: Cannot change Tyres Size with Forscan
Posted: Wed Aug 22, 2018 12:47 am
by saeb
Max size manual 0987
Max size automatic 0977
This will get rid of you DTC. There are pages and pages here regarding this.
Enjoy.
Re: Cannot change Tyres Size with Forscan
Posted: Mon Aug 27, 2018 8:11 pm
by Twinpiston77
Hi Stewart, can you link a few of the pages or is there a sticky? Also what is the default values compared to the maximum?
Re: Cannot change Tyres Size with Forscan
Posted: Tue Aug 28, 2018 10:59 pm
by saeb
Twinpiston77 wrote: ↑Mon Aug 27, 2018 8:11 pm
Hi Stewart, can you link a few of the pages or is there a sticky? Also what is the default values compared to the maximum?
Default is usually approx 0934 0938.
0934 = 2356mm circumference
Max size manual 0987 = 2439mm circumference
Max size automatic 0977 = 2423mm circumference
There is a 4% fudge factor involved and this is what you see is missing on the instrument cluster.
Re: Cannot change Tyres Size with Forscan
Posted: Thu Oct 18, 2018 3:45 pm
by saeb
tienbamboo wrote: ↑Tue Aug 21, 2018 8:22 pm
Dear all,
I tuned AT/BF Goodrick Tyres 265/75/R18 for my Ranger
I changed in BdyCM 726-12-01 xxxx 09AB xxxx with Forscan
But appeared Check engine indicator and DTC P0700 in PCM, and I cannot reset or relearn PCM.
What can I do? Thanks
Max size manual 0987
Max size automatic 0977
or DTC
2.0 may be different and could be lower or higher before a DTC.