Quote:
Originally Posted by tomm.brz
I read somewhere here in the forum that people needed to change the ecu because it stored wrong initial position values.. doesn t the ecu reset the value after a reset or. flash?
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It is true. The initial position value table can only be updated when the VVT system is judged to be "OK." The problem is when the root cause for the initial position value drift is corrected, the bad value in the table forces a large enough error between commanded and measured angles to throw the "not OK" flag. It can never re-learn.