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Hyundai atoz.Takes ages for revs to come down. After 1/4 throttle misfires

Takes ages for revs to drop between gear changes,or if you bleep throttle. when moving away misfires after 1/4 throttle, but not when stone cold..

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Throttle position sensor.

Posted on Dec 11, 2012

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Posted on Jan 02, 2017

  • 359 Answers

SOURCE: high revs when changing up through the gears

it is just one of those cars that drive like that its different but you need to change your driving style to suit

Posted on May 25, 2008

  • 359 Answers

SOURCE: rev high when changing gear up

my friend has same model its normal he said it does it more so when its cold

Posted on May 26, 2008

  • 1 Answer

SOURCE: automatic choke stopped working- difficulty start- revs dropping low at stop

Quick and easy attempt to fix might be to try some fuel injector cleaner,the purple bottle stuff I put in, is only about $3 a bottle, and seems to eliminate similiar symptoms brought on by bad gas.

Posted on Jun 15, 2008

  • 208 Answers

SOURCE: 2006 Ford Focus 1.6

Check throttle position sensor.

Posted on Aug 01, 2008

  • 962 Answers

SOURCE: Hyundai accent high revving during gear change

you may have a problem with the idle sensor located near the fuel injection system.

Posted on Oct 29, 2008

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it may require a ECM upgrade in the software
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The revs take ages to come down and misfire when excelerating

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Dec 11, 2012 | 2007 Hyundai Accent GS Hatchback

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Hyundai atoz dosent pick up speed at high gear and start jerking

fuel pressure cud be bad at that speed--transmission may hav issue in top gear--find a specialist to test--------

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1 Answer

I have an 89 Excel and i got it to start and idle but as soon as you push gas it stalls. If you catch it right as soon as you start it it will rev up for about 20 secs and dies again.

You issue is common with 'AGING' vehicles.... this drivability issue is not necessarily Hyundai Excels. As vehicles age, there are 'MULITPLE' probable causes... primarily the Throttle Position Sensor (which is the MOST COMMON cause). Find a COMPETENT TECHNICIAN to bench test it! If it tests 'GOOD'.. then the diagnosis has to continue to determine the 'ACTUAL' cause.... Sorry, that's the business of 'DIAGNOSIS'.... it ALWAYS takes TIME!

Mar 24, 2011 | 1989 Hyundai Excel Hatchback

1 Answer

Revs slow to drop when changing gears

right the steeper motor is playing up which is why the engine is taking a long time to drop RPM as for teh clutch its auto adjust so if clutch worn then renew it ,clutch life depends on the driver so i can get 150.000kms out of a clutch and one of my customers only gets less than 20,000kms out of a clutch as he pulls away in second and slips clutch when changing gears ,i cringe when i hear him driving past the yard

Jul 17, 2010 | 2004 Hyundai Elantra

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It revs like hell as if it is stuck on choke help

Change the idle air control,this controls the idle,it is most likely stuck closed,allowing the idle to remain too high.

Feb 08, 2010 | 1999 Hyundai Accent

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If you are getting a lot of misfires and you know everything is good (i.e. spark plugs & wires, etc...), you may want to check the cat converters as one may be plugged. you can use the front O2 ports to check this.

May 18, 2009 | 1999 Mercedes-Benz E-Class

1 Answer

Honda CR-V - 2004 - High RPM not returning to Idol RPM ????

i'am no expert on this car, but i would chk. the T.P.S. (throutle positioning sensor) there also may be carbon build up on throutle butterfly, not letting it close completely when you take your foot off the pedel.

Jan 14, 2009 | 2001 Honda CR-V

1 Answer

Hyundai accent high revving during gear change

you may have a problem with the idle sensor located near the fuel injection system.

Oct 29, 2008 | 2000 Hyundai Accent

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