Hi,
I guess there could be a vacuum leak at the PCM. Is the vehicle running normally? A vacuum leak will cause a rough idle or even a misfire.
I attached a pic of the PCV. Check it as well as the hose that attaches to it for leaks. Those runs back to the intake manifold. If you remove the PCV valve and shake it, you should hear a rattle from it indicating the check ball is free.
Let me know if I can help.
Joe
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Friday, November 22nd, 2019 AT 9:08 PM