Error code P0340
Engine light seems to be coming on right after I fill my gas tank. Ran a test and got P0340. This is indicating some environmental issue.
Cars & Trucks - Chevrolet - Aveo - 2004 Chevrolet Aveo
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Answers & Comments
Code 340 is for a problem with the cam sensor circuit. I doubt it would involve the gas tank. May be a coincidence.