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A404freedom A404freedom is offline
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Posts: 45
Join Date: Jul 2020
Car: BMW 435i m-sport
Default New JB4 CEL code errors - 08-26-2020, 04:29 PM

Had some new errors come up today, was hoping for some help.

For reference i run a JB4/MHD BEF on stage two equally.

123412 electric wastegate, stop learning: stop position (wastegate closed) not found
120408 reduced power mode
123401 wastegate learning stop during *** heading cycle
118002 mixture ecu: mixture too
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