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Old 02-13-2014, 09:31 PM
A B Able Truck A B Able Truck is offline
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Quote:
Originally Posted by Gurjit View Post
When you pull the dipstick you are opening the crankcase-> lets airflow through ccv into intake manifold-> alters the air/fuel mixture after the mass airflow sensor causing engine to trip out
Y dont you try it on your engine
Edit your signiture so we can see your x5s year and options
If your CCV's are working (closing) due to adequate (negative) vacuum - then when you pull your dipstick (positive - pressure side - blowby) the diaphragms should stay closed (engine running) due to the vacuum holding them closed.

As I wrote above - I have witnessed the diaphragms in action & pulled the dipstick while it was running. The diaphragms stayed closed & the engine did not miss a beat.

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