Codes

Asked by Jun 21, 2019 at 01:37 PM about the 2009 Kia Rondo LX

Question type: General

My codes are $7E8 and the $7E9.
Check engine light on for three days
now.

1 Answer

My kia optima has the same problem. The codes mean bad readings from the mass air flow sensor in the air intake. In my car it happened after I filled the gas tank and a tube that runs from the gas tank to the air intake spewed gas on the sensor. There is a valve in this line that is supposed to stop the liquid gas and just let fumes through. That vale failed and caused the sensor to freak out. I had to remove the sensor, clean it, put it back, and only half fill the gas tank from then on.

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