Reset overhead computer ??
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Junior User
Joined: Aug 2007
Posts: 52
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From: Ca.
Reset overhead computer ??
Can I reset or reprogram the lie o meter. It is way off, displaying that I can travel over 700 miles. Then it comes down quickly like it is calibrated wrong. I see that the "zone" can be changed but I don't know what that is for and when I change it no difference is seen. I appreciate any help. Thx.... Ron.
99.5 350 4x4 lariat
99.5 350 4x4 lariat
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
Can I reset or reprogram the lie o meter. It is way off, displaying that I can travel over 700 miles. Then it comes down quickly like it is calibrated wrong. I see that the "zone" can be changed but I don't know what that is for and when I change it no difference is seen. I appreciate any help. Thx.... Ron.
99.5 350 4x4 lariat
99.5 350 4x4 lariat
Chet
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 9
From: Snohomish, WA
Unfortunately I have not seen a way you can recalibrate it. It seems to be a mathmatical algorithm that uses injector PW for the calculation. If you are running a chip or tuner the fuel stretegy is changed as is the injector PW, that is why they are usually so far off. Like most of the others have said, run a few tanks through it and see what your actual mileage is and what the OH console says. You will find out that subtracting the difference will always be pretty close to what you are getting. Mine in 80E is about 5.3 MPG higher than actual.
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Junior User
Joined: Aug 2007
Posts: 52
Likes: 0
From: Ca.
Thank you very much for the replies. Bought the truck 6 years ago and it was chipped. But didn't see the big inaccuracy with the OTC until recently. Suddenly jumped way off. I'll chalk it up to the chip and not worry about it. Thx..... Ron.
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