6L90E Coast Down TC Lock up

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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.

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Tue, 05/16/2017 - 14:15

#1

omcvay54

6L90E Coast Down TC Lock up

Hello,

Entirely new to tuning using HP tuner. I have a 13 CTS V with cam, injectors, upper lower pulleys, headers, and ported snout.

The car was tuned well and runs well with one exception: on coast down from around 60 it feels as if the torque converter is locking and unlocking quickly causing a bumping sort of feeling. I am looking for help with the area of the trans only as my lack of experience is not helping sort this specific problem. Thanks in advance! Tune file below.

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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.