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2003 Hyundai Accent running rich

Tiny
SPEEDRACER7250
  • MEMBER
  • 2003 HYUNDAI ACCENT
  • 190,000 MILES
My car is running rough at idle at all temps. The check engine light was on and two codes came up for it the first was for the throttle position sensor and the other was for one of the banks running rich. I replaced the sensor and had the codes reset. It was still runs rough at idle and both codes showed up again.
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Friday, November 15th, 2013 AT 8:41 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Does it run poorly at any time other than when it is at an idle? Have you checked fuel pump pressure to make sure the regulator is working and pressure isn't too high?
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Friday, November 15th, 2013 AT 8:44 AM
Tiny
SPEEDRACER7250
  • MEMBER
  • 2 POSTS
Once I start going it runs with no problem its just when I come to a stop that it dose it. I havnt checked the fuel pressure yet should that be my next thing to check for? And what should the pressure be at?
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Friday, November 15th, 2013 AT 8:48 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Since the engine is running rich, I would check it to make sure the pressure isn't too high.
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Friday, November 15th, 2013 AT 9:48 AM

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