Yes, sounds like a vacuum leak. If you have access to a smoke machine you can seal off the intake and put smoke into the intake tract. The factory service manual has a couple diagrams for the piping. Most of the rubber hoses you see on top of the engine are tied to the intake except for maybe a couple of the small ones near the front which are coolant lines.
Vacuum leak?
Hey everybody. Apologies if this is in the wrong section, I wasn't sure where to post this. I believe I'm having what I'm led to believe is a vacuum leak. My check engine light comes on, and I can't push full boost. The car just feels like it's N/A. I clear the code, everything runs fine, for a bit. Then it comes back on (which is expected). I've replaced the MAF sensor as the code that came up was P0101. I've also replaced the air filter just to be sure. The problem still remains. I suppose my question is: Am I looking at some sort of vacuum leak? And if so, how would I be able to tell which lines are vacuum lines? Additionally, how would I test them to confirm my theory? Thanks in advance for anybody willing to help out!
btw - my car is a 2014 Juke Nismo RS 1.6T 6sp M/T
btw - my car is a 2014 Juke Nismo RS 1.6T 6sp M/T
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i have another issue where sometimes i get a traction control light coming on. when that happends, my RPMs won't go above 2500. would this be related to a vacuum leak?Yes, sounds like a vacuum leak. If you have access to a smoke machine you can seal off the intake and put smoke into the intake tract. The factory service manual has a couple diagrams for the piping. Most of the rubber hoses you see on top of the engine are tied to the intake except for maybe a couple of the small ones near the front which are coolant lines.
that one is hard to say. wheel speed sensor issues or uneven tire wear (side to side) can cause the traction control light to come on. Troubleshoot one thing at a time. Sometimes fixing one thing can fix the other, but that's not always the case. For now, you know you have a vacuum leak. Fix that and make sure your P0101 doesn't come back. Then see if the traction control light is still coming on and an issue.
The traction control light doesn't come on that much. But when it does it's either after I drive for an extended period of time, or too much stress on the engine - going up a steep hill, or wide open throttle in a high gear at a lower speed. But I'll check out the vacuum issue today
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