Hey, guys. I'm new to the forum, and I have a rough idle problem, one I think is related to a part I think may be bad. It's Mazda dealer part no. FS0518741/5KT49090 (see first picture in link below). Part is called the "vacuum control solenoid". This part has a vacuum hose that connects to the manifold (left side rear of manifold, as you look under the hood). I once noticed that the end of the hose connecting to the "solenoid" was disconnected. While the other end was connected to the manifold I could feel a semi-strong vacuum as I touched the open end. When I connect the other end to the "solenoid", my RPMs go down a few thousand, with idle becoming a bit weak. When I take the hose off of the part (but leave it connected to the manifold) the idle becomes normal.
Please let me know if you see the part I am talking about and if the idle dying down when I connect it means something is wrong with this solenoid. Thanks guys.
-Jim
Part link: https://www.ebay.com (commissions earned)
Please let me know if you see the part I am talking about and if the idle dying down when I connect it means something is wrong with this solenoid. Thanks guys.
-Jim
Part link: https://www.ebay.com (commissions earned)
