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C450 Shifting early with Jb1

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Old Apr 28, 2018 | 08:35 PM
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Timmy9830's Avatar
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C300
C450 Shifting early with Jb1

would anyone happen to know why my car is shifting early with both map 1 and 2 on the Jb1. It’s shifting at 6300 instead of 6500.
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Old Apr 29, 2018 | 11:41 AM
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Are logs telling you this or are you just looking at the tach? The analog tach can't keep up with actual RPMs in 1-2 and 2-3 shifts when flat out. If it's logs telling you, not sure...
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Old Apr 30, 2018 | 12:22 AM
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Logs are telling m me it’s shifting at 6200-6300
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Old Apr 30, 2018 | 08:09 AM
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You have to engage the step down in the pedal to make it rev out in auto. Doesn't really shift at 6500 regardless of doing that, however. Likes to shift ~6400
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