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High or fast Idling

Tiny
PCHITOWO
  • MEMBER
  • 2006 TOYOTA VITZ
  • 1.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 86,000 MILES
I recently removed the head of the Vitz engine after it had failed to start. I discovered that it had damaged the valves so I replaced them. I cleaned the throttle body and MAF sensor and re assembled the components that I had removed. The car is now starting but I have a problem with the idling, it is too high what could be the problem? I am not a mechanic but I have some general knowledge of automotive mechanics.
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Wednesday, November 21st, 2018 AT 12:28 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi and thanks for using 2CarPros.

Since you had everything apart, my first suspect is a vacuum leak. Recheck that all vacuum hoses are attached and not damaged. Also, make sure the air inlet tube from the air filter box is correctly attached. Follow this link to locate a vacuum leak.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Let me know if this helps or if you have other questions.

Take care,
Joe
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Wednesday, November 21st, 2018 AT 4:18 PM
Tiny
PCHITOWO
  • MEMBER
  • 10 POSTS
It did help thank you so much for the help. You guys have been so helpful. I checked the vacuum hose and found that it was indeed broken.
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Thursday, November 29th, 2018 AT 11:18 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
I am glad it helped. Let us know if you have questions in the future.

Take care and have a good weekend.

Joe
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Friday, November 30th, 2018 AT 7:25 PM

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