Speedo Calibration Question

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I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.

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Fri, 06/14/2019 - 16:09

#1

SOMFormula

Speedo Calibration Question

I have a customer with a 5.3L and a 6L80E in his 2009 truck

I’m running into an issue with calibrating his speedometer.

im using EFI Live.

35” tall tires. 4.56 gear ratio.

I wanted to adjust his shift points and correct the error. But for the life of me, I can’t seem to get the speedo to change what it’s reading.

EFI Live has a speedo calculator in the tables for both the E38 and the T43 I’ve made the tables match using the calculator Flashed both the ECU and TCM No luck! I’m still 6mph off at 60

Any help would be appreciated! Thank you!

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Click on the "SUBSCRIBE" tab to sign up. I will not respond to technical questions unless you are a paid subscriber. Calibration and Config files will not open directly from the site, they must be downloaded to your computer in order to open.

NEW!!!

I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.