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My 848 evo will start and randomly stall out and when I rev it just a tad it’s idol will fall down to about 1150 to 1250 then of course it will stall.
It does this pretty much exact same thing in this video

 

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My 848 evo will start and randomly stall out and when I rev it just a tad it’s idol will fall down to about 1150 to 1250 then of course it will stall.
It does this pretty much exact same thing in this video

A few things can cause this. TPS bad / not set right. Also the idle air motor on the throttle body assembly can be failing. It is responsible for throttle idle and also off throttle as well up to a certain percent of throttle angle. And last which I do not think it is would be the throttle plates are not set right as well. This can cause idle issues. I would shoot for the TPS first to check if it is set right and the idle stepper motor.
 
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