how to reset a Mazda check engine light?

han

Member
May 19, 2008
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2007 mazda3

it came on the other day, first thing I checked is the gas cap, sure enough it wasn't put in correctly, so I tightened the cap and continued driving.
When the light came on it was about 100 miles since I filled the gas tank.
After the light came on and I re-secured the gas cap I drove another 50 miles, the light is still staying on... how long will it be before it goes away?

How do I re-set the light?
 
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