Is there a way to enter a correction factor into the computer to get a better display on the speedodometer. I have the smaller wheels on, and am off by around 8mph at 90... 90=82 I'm able the get an accurate reading from my GPS unit that calculates my real speed. It's really annoying, that and the fact that my car is running the miles up higher than it should be becaus of this.

I have searched, but can't find what I need.

Thanks

_________________
mini.thepilo.com

 

Pilo,
Try this. Usual disclamers etc.

Regards,
MOTOR'N

http://www.blackrobotics.com/

 

>>Pilo,
>>Try this. Usual disclamers etc.
>>
>>Regards,
>>MOTOR'N
>>
>>http://www.blackrobotics.com/

Thanks, Looks good, I believe that I saw a way to enter it directly into the computer of the car... I'm not sure.. if no one knows, this may be the solution that I need.

 

Pilo,
Also found this:
http://www.autotransinc.com/recal.htm
Regards,
MOTOR'N

Randy,
How about some help here, can the ECU (Speedo reading) be adjusted to compensate
for tire dia?
Thanks,
Ric

 

Ric,
WELCOME to MCO!!

The ECU does determine the speedo, but I'll have to talk with the gurus about whether you can rewrite it.

 

I remember a post where they were going through all the hidden settings on the OBC, and were trying to decode them, I believe that one of them was Speed correction, I just can't find that post, or any info from it.

 

>>Ric,
>>WELCOME to MCO!!
>>
>>The ECU does determine the speedo, but I'll have to talk with the gurus about whether you can rewrite it.
Thanks Randy,
I'm The one who should have welcomed you however. Long time member, not poster
Regards,
Ric
PS. Check your PM