SOURCE: code P1457 (99 acura tl)
Nothing will happen. The code is for the prevention of fuel vapors getting out of you tank and into the air damaging the enviroment. You need a quality repair shop check the gas cap and perform a smoke test on the evap system. Basically it is a pump that fill your tank and lines with smoke to find where it is leaking. Expensive equiptment, but most good shops have it. Code be as little as a hose, $100 with the test, to the charcoal canister replacement. $600
SOURCE: received p1457 ecu code evap system leak evap
means your loseing fuel pressure replace gas cap if that isnt it evap control canister replace it good luck
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