1999 Honda Accord Check Engine P1457

HONDA ACCORD
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JPERALTA
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We have a 1999 honda accord EX 100000 miles. The check engine light keeps coming back on the computer code we keep getting is p1457. We have gone through all the tests in the Honda Book and replaced the O2 sensor. Do you have any suggestions?
Dec 4, 2006 at 5:55 PM
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BRUCE HUNT
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That code does not usually point to the O2 sensors but refers to the emission side of the fuel system that usually has a charcoal canister and a few sensors. The problem could be a vacuum leak in the fuel system. A very simple cause of this can be a badly fitted gas cap or a leak in the gas cap.
Dec 4, 2006 at 11:18 PM

Suggested Repair

P1457 usually relates to the EVAP side of the fuel system, not the O2 sensor. Check that the gas cap is properly fitted and not leaking, then inspect for vacuum leaks around the charcoal canister and related sensors.

Conversation Summary

A 1999 Honda Accord EX with about 100,000 miles has a recurring check engine light and code P1457. The owner followed the Honda tests and replaced the O2 sensor. The expert said the code usually points to the EVAP emissions side of the fuel system, including the charcoal canister and sensors, and that a vacuum leak or a poorly fitted or leaking gas cap is a common simple cause.

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