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Intermittent stall @ idle with no trouble

Tiny
URBANAKARE
  • MEMBER
  • 2001 TOYOTA CAMRY
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 12,900 MILES
Car runs great for awhile @ idle, then rpm's begin to fluctuate ending in a stall. No trouble codes will set. While driving it feels like there is a flat spot in the TPS, but this is not the problem as I have just replaced it. Car will restart immediately with no problem, then goes through the same routine after a few minutes.
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Sunday, July 11th, 2010 AT 11:50 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This sounds like a possible fuel pressure issue. So I would suggest starting with checking the pressure to find out if it stays steady when this starts happening or it drops.

Here is a guide that will help with this:

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

If this checks out then here is another guide that will help with possible causes of this issue:

https://www.2carpros.com/articles/engine-stalls

Also when this starts to act up, unplug the MAP sensor and find out if this clears up or doesn't stall. If so then you have a MAP sensor issue.

I am attaching the info on this below. Please run through this and let us know if you have other questions. Thanks
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Tuesday, August 3rd, 2021 AT 8:38 PM

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