Check engine light on 2009 Hyundai Santa Fe

Check engine light went on. only 7300 mi. went on at 67mi after fill up. opened gas cap for a few minutes. replaced gas cap. is there a certain # of miles you need to travel for a new reading on emissions and the system will reset on its own

by in Narragansett, RI on June 27, 2010
1 answer 5 comments
ANSWER by on June 27, 2010
Sounds like a dealer warranty problem to me.
COMMENT by on June 27, 2010
Without a doubt. I was just curious as on my old car a gas cap not being on correctly would cause the engine light to go on but if you recapped it, it would go off when the computer went through it's next emission check at a certain number of miles, specifically 70 for my '97 mazda 626. Sorry for what seemed like a dumb question. I'm just a girl...
COMMENT by on June 27, 2010
Not a dumb question. It's just that there are over 100 different things that can trigger a check engine light. And with out a specific code you would not know even where to start checking things. most larger auto parts chains will read the codes for you free. And on something as new as yours a messed up gas cap is unlikely. Sorry if my answer was so terse.
COMMENT by on June 27, 2010
No problem. However, the engine light did go off (?reset)when the tripometer read 110. I'm not exactly sure when it did go on. I noticed at 67 mi after fill up. So it appears the emissions either read at certain mieage intervals or after so many startups (found that info elsewhere) But I will be calling the dealership.
COMMENT by on November 17, 2010
I had the same issue. The check engine light would go on because of the gas cap. I nursed it for one year by having to put the cap on the same way. As there are two way (notches) theat the cap can be tighten. I put a mark on the cap so I would know the cporrect way. Sounds stupid but it worked. My light is on again and will not go out, so I am going to replace the cap first before any parts are changed.
COMMENT by on March 16, 2011
I had a similiar problem today on 2008 Santa fe. The issue was caused by filling up with the engine running. I had it reset at car-parts store. I'm waiting to see if it comes back on.
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