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How do I troubleshoot the DTC P1456 and P1457 on my 2003 Honda Civic EX 1.7L?

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How do I troubleshoot the DTC P1456 and P1457 on my 2003 Honda Civic EX 1.7L?

Vehicle: 2003 Honda Civic EX 1.7L

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You should start by securing the gas cap and clear the code before replacing any parts.

P1456 HONDA Code - Evaporative Emissions Control System Leakage Fuel Tank
Read more: https://www.autocodes.com/p1456_honda.html

P1457 HONDA - Evaporative Emissions Control System Leakage EVAP Canister System
Read more: https://www.autocodes.com/p1457_honda.html

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