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-   -   04 525I when cold engine starts and runs but shuts off (

MLAWING 12-03-2012 03:17 PM

04 525I when cold engine starts and runs but shuts off
It will continue to start and shut off until it reaches 160 degrees. The car will run perfect the remainder of the day ,until the next morning. ANY IDEAS:dunno:

boramkiv 12-03-2012 04:35 PM

Any warning lights, codes? It could be quite a few things. MAF sensor, dirty throttle body, coil(s). I would start with checking for a vacuum leak though.

MLAWING 12-03-2012 06:31 PM

the only code that comes up is auxillary inputs and outputs malfunction.I have intake off now everything looks good crankcase vent valve looks good . I have replaced mass air, when the car cranks it runs smooth it just acts like u unplug it. im leaning toward changing crank and cam sensors somebody stop me if that doesnt sound good:thumbdwn:

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