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Ideal Idle Revs? How Low Can They Go Before Stalling?


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#16 maximus777

maximus777

    Starting My Mini Up

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  • Location: Muntinlupa

Posted 25 January 2021 - 04:22 PM

Hi sprocket,
Im fairly new to the mini.
Im having problems with my idle and previous owner said he changed the camshaft to a 731.

-I have checked all the sensors and have no faults by means of mems rosco, mems diag and rover mems
-have also changed all vacuum lines to silicone hoses.
-set the lost motion gap
-new bosch lambda sensor put in
-no vacuum leaks

The problem is the idle cant go lower than 1100+ rpm or it will stall. It is also at 0 steps when engine is warm so that means ecu is not in control of the idle. It does not raise rpm when aircon is turned on. I am also sure previous owner messed with the screw.

How do i tune the stepper motor with all the diagnostic programs i am currently using?

Thanks




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