hanneshoffmann1
Eon Misfire Fuel Injector Suspected
Summary of the thread
A 2013 Hyundai Eon experienced persistent misfire issues, with symptoms including an intermittent check engine light, rough running, and reduced power. Despite replacing the spark plugs, the problem persisted, leading to the suspicion of a defective fuel injector. After consulting a workshop, it was confirmed that a faulty fuel injector was the cause, and replacing it resolved the issue, restoring smooth operation.
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4 comment(s)
hanneshoffmann1 (community.author)
The issue seems more pronounced during colder starts. Regarding the fuel pump, is there a reliable method to assess its functionality without specialized equipment? I want to avoid trial-and-error repairs.
kurteagle1
The problem arising more frequently with cold starts strengthens the suspicion of an injector issue. Testing fuel pump output properly usually requires professional equipment. I would suggest consulting with a qualified workshop for diagnostics; it will save you time and likely prevent further complications. A cylinder misfire can cause lasting issues.
hanneshoffmann1 (community.author)
Based on your recommendation, I took the vehicle to a workshop. It was indeed a defective fuel injector; the repair cost 515€. The car runs smoothly now. Thank you for your help.
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HYUNDAI
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EON
kurteagle1
The symptoms point towards a combustion misfire. The check engine light, rough running, and poor throttle response are indicative. Have you noticed any patterns, like when the engine is cold or under specific load conditions? It may also be prudent to examine the fuel pump.