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Re: ecu code p1457
It very likely to be loose gas cap.
retighten (three clicks) gas cap and reset ECU by pulling for 30sec fuse #13 (7.5A Clock, Back-up) in fuse box on passenger side.
if it come back in few weeks you'll need to take your car to shop to run thorough diagnostics. but i'm 99% sure its just loose gas cap.
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