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piakoenig56
Sequoia Manifold Pressure Sensor Issue
4 comment(s)
piakoenig56 (Author)
Thanks for the quick reply! I've given the hoses a quick visual check, but nothing jumps out as obviously damaged. Is there a more reliable way to pinpoint a vacuum leak without specialized equipment? Maybe some areas that are more prone to leaking on the Sequoia?
haraldkoenig1
You're welcome! Finding vacuum leaks can be tricky. Without professional tools, you could try listening closely around the intake manifold and vacuum lines while the engine is running – sometimes you can hear a hissing sound. However, since it's a sensitive sensor and engine performance is affected, it might be worth taking it to a workshop. They can perform a smoke test to accurately locate any leaks and confirm the sensor's condition.
piakoenig56 (Author)
Okay, thanks for the advice! I think I'll take it to a workshop to get a proper diagnosis. Turns out the manifold pressure sensor was indeed faulty, and there was a pretty significant vacuum leak. Sensor replacement and leak repair cost me 235€ Appreciate the help!
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haraldkoenig1
Hey there! A faulty manifold pressure sensor definitely sounds plausible given the symptoms you're describing. The reduced engine power and poor response, along with increased fuel consumption, all point in that direction. A vacuum leak could indeed be the underlying cause affecting the sensor readings. Have you checked for any obvious signs of leaks, like cracked hoses or loose connections around the intake manifold?