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Red face Periodic Check Engine Light, 2004

Over past month or so my Check engine light has come on and stayed on. After I checked many things like oil level, reset oil change odometer setting, gas door properly closed, etc, it went away for a few weeks. Yesterday it reappeared and ONLY when I opened and closed the gas cap and gas door, did it go away.

My guess is that there is a problem with the gas cap or door.

o What do you think?

o How may I fix this permanently?

I am a newbie her, so whatever help you may provide, I will really appreciate it.

2004 Silver Prius; 80,000 miles:
Robbie is offline  

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