my obd light comes on when gas tank gets less than 3/4 full stays on till it is 1/4 full chev camaro 2011 any ideas
Have you had the code read? ensure that the gas cap is on tightly.
Sounds like a problem with the EVAP system, catalytic converter, or EGR system. The computer will only run the diagnostics on these systems with the gas tank between 3/4 and 1/4. Visit your local auto parts store and have the computer scanned for trouble codes. Most stores will do it for free. Post the codes you get and we can help further. HTH. -Jim
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