It starts but it idles high and then shuts off

Tiny
TIFFTIFF
  • MEMBER
  • 2012 NISSAN SENTRA
  • 2WD
  • AUTOMATIC
  • 97,000 MILES
If rev engine it doesn’t shut off but if I let it idle it does.
Friday, May 28th, 2021 AT 1:16 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Hi,

This could be the result of a few things. An engine vacuum leak can cause it as well as low fuel pressure. These are two things you can check without providing more information to me. However, if we need to start checking the idle air control circuit, I will need to know the engine size. It should be either a 2.0L or a 2.5L four-cylinder.

Here are two links I need you to review. The first one explains how to check for and repair an engine vacuum leak. The second one explains how to check fuel pressure.

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

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let me know what you find or if you have other questions.

Take care and feel free to ask away. LOL

Joe
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Friday, May 28th, 2021 AT 6:54 PM

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