CEL is throwing code P1457, Evaporative emissions (EVAP) control systems leakage (EVAP cannister system). What does that mean? And Can I drive the car without damaging something? it's a 99 LS. the only mod is an AEM short ram intake that I put on a week ago, car has driven fine since and the cel came on today about 5 minutes after i started driving today.

 

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