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Engine light
1999 Honda Civic

ENGINE LIGHT

(1999 Honda Civic)
MY CAR HAS 88500 MILES ON IT .THE ENGINE LIGHT CAME ON
AND I HAVE A CODE OF P1456. THE LIGHT HAS BEEN ON FOR 6 DAYS. I CLEANED THE GAS CAP AND TIGHTENED IT. I WAS GOING TO GET A NEW CAP THOUGH THIS ONE ISN.T THAT OLD.
ALSO I GOT AN OIL CHANGE AND THEY DID A DIP TEST ON MY BRAKE FLUID AND IT SAID THAT THERE IS OME COPPER IN IT??
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Popular Answer
on July 22, 2010
The 1456 code is an evaporative system Leak code, unfortunately there are several components in the EVAP System. The first thing I test is the ability of the Purge Valve to hold a vacuum on any Honda, after I make sure that the gas cap is NOT the problem. By the way, only use a factory gas cap. Here is a Diagnostic article I wrote for RepairPal about EVAP system leak Diagnosis, It is pretty comprehensive, but sometimes you need to REALLY check the entire system to find the leak and it takes time and special tools. Code P0442 is a small EVAP leak.

http://repairpal.com/OBD-II-Code-P0442

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Oil Leak Diagnosis
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on July 22, 2010
The 1456 code is an evaporative system Leak code, unfortunately there are several components in the EVAP System. The first thing I test is the ability of the Purge Valve to hold a vacuum on any Honda, after I make sure that the gas cap is NOT the problem. By the way, only use a factory gas cap. Here is a Diagnostic article I wrote for RepairPal about EVAP system leak Diagnosis, It is pretty comprehensive, but sometimes you need to REALLY check the entire system to find the leak and it takes time and special tools. Code P0442 is a small EVAP leak.

http://repairpal.com/OBD-II-Code-P0442

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