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My 2000 Hyundai Accent stumbles when taking off from a stop light

2000 Hyundai Accent 1.5L manual transmission with about 81000 miles. Last tank of gas I got 35.5 mpg. The most pronounced problem is at idle, when I stab the gas pedal, the car will stumble, but not die. If I take off from a stoplight, it stumbles also. If I am rolling at a traffic light and try to continue through the light but in second gear, the car will buck as if it isn't getting enough gas. The car has died several times lately. I have replaced the spark plugs, plug wires, the Mass Air flow sensor, the idle control valve and the fuel filter. Check engine light is on, and it reads P1123. The car is very reliable, but it seems like the more things I try, the more pronounced the problem becomes. PLEASE HELP!

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  • Anonymous Dec 10, 2008

    I have the same problem. I have also replaced the fuel line filter and the timing belt. Have you noticed if the problem is more pronounced when it is wet out?

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4 Suggested Answers

  • 1 Answer

SOURCE: Subaru stalls while driving, and idling

check the cam and crank position sensor making sure that there is no metallic deris

Posted on Mar 10, 2009

Rebgagnon
  • 382 Answers

SOURCE: '95 Subaru Suddenly Getting Horrible Gas Mileage

Winter time driving does reduce the MPG due to temp not allowing the fluids to warm to thinner viscosity allowing parts to operate with less friction. Hope this eases you a bit. Have a good day.

Posted on Mar 29, 2009

toneman2121
  • 775 Answers

SOURCE: start car is fine but once hits idle speed the

i would agree with your diagnosis. i had a similar problem with a crown victoria. disconnecting the maf sensor made it run better. i replaed the sensor and have had no problem since

Posted on May 08, 2010

  • 1 Answer

SOURCE: engine stumbles, hesitates, at low speeds

does it seem to sputter or hesitate when you excellerate through a turn?

Posted on Nov 24, 2011

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