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Car sounds rough, idling issues, issue shifting gears

Tiny
WOLF8890
  • MEMBER
  • 2012 HONDA FIT
  • 1.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 80,571 MILES
Car sounds rough. Having idling issues, when starting the car idling at 2,500 RPMs when it warms up for a few minutes RPMs drop to 1,000. When turn on the heating/AC the RPMs drop lower and sounds like the car wants to stall. It's also having issue changing gears when going up hills. The transmission fluid was change about 8 months ago. Not sure if its a related to 1 problem or multiple problems. I did a obd2 scan the only thing that comes up is 83-11 ECM/ISU failure.
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Sunday, February 28th, 2021 AT 4:01 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I don't think these are related to the code but I attached info for the code below.

However, this issue sounds like a possible vacuum leak. Here is a guide that will help with this:

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

The shifting may be a separate issue so we need to tackle the engine running poor issue first and then we can go after the shifting issue if that is not solved as well.

Let me know what questions you have.
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Monday, March 1st, 2021 AT 3:10 PM

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