Codes that popped up

Pudge49902

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Hey guys i need to do a state inspection (NY) and i got these codes:

p1456
p0401
p0420


what do i need to do to fix these?
 

RedRyder

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P1456 - Fuel evap system leak
Try replacing the gas cap, after that it could be any number of things from a valve to a solenoid to a cracked hose. Search 1456.

P0401 - EGR insufficient flow detected
Try cleaning out your EGR port. There is a DIY.

P0420 - Catalyst system efficiency below threshold
Could be an o2 sensor or your cat needs replaced. Search 0420.
 
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