Check engine light on Hyandi Accent for PO496 Evaporative Emission system High Purge Flow, hope this isn't serious...we are due for a huge snow storm tonight.

Asked by Jan 22, 2016 at 01:56 PM about the 2007 Hyundai Accent GS

Question type: General

The guy who did the check engine light doesn't know what this is...can you
help me?   I hope it isn't serious as we are getting a huge snow storm tonight.

2 Answers

92,985

So either the purge control valve is stuck open or the gas cap is loose. Try removing and then reinstalling the gas cap making sure it is on correctly and tight, if that is the problem then the light will turn off after about 5 to 10 cold starts. Or you could swing by a parts store that pulls codes and have them clear it and then see if the light returns. This is not something that will leave you stranded out in the middle of nowhere but try not top off the fuel tank until you know for sure it was just the cap, cause if it is a stuck purge valve it can suck raw gas into the evaporative system and may cause the engine to blow black smoke and run rough.

2 of 2 people found this helpful.

Thank you sooooo much...I really really appreciate your taking the time to write back...fingers crossed it is the gas cap...I'll go try that right away.

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