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dr.donut
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Oct 22, 2018, 7:38 AM
Post #1 of 8
(1822 views)
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2002 civic monitors
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Having trouble with these monitors , I had a code p1457 " no dtc definition found , pending " and 4 monitors , catalyst , evap. system , oxygen sensor and oxygen heater , they come and go but I need to get the sticker this month . I find it strange that when I read the codes the p1457 came up but didn't light the cel , and when I read that code I checked the monitors and there was only the evap , then I started the car , shut it off and cleared the one code , then checked the monitors and the other three came up . If I can get advice on where to start that would be great , thanks .
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 22, 2018, 7:50 AM
Post #2 of 8
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Re: 2002 civic monitors
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That's because clearing codes resets monitors and they all have to start over so you have to fix issues first.
That code is for a leak in the EVAP system so you need to smoke test it to find the leak.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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dr.donut
User
Oct 22, 2018, 7:55 AM
Post #3 of 8
(1816 views)
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Re: 2002 civic monitors
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and of course the code would result in failed test even though the cel didn't light up , ok thanks
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Hammer Time
Ultimate Carjunky
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Oct 22, 2018, 8:19 AM
Post #4 of 8
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Re: 2002 civic monitors
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I think it would put the light on eventually. It may be a 2 trip code and you are only seeing a pending code.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Oct 22, 2018, 8:20 AM)
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dr.donut
User
Oct 22, 2018, 10:38 AM
Post #5 of 8
(1799 views)
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Re: 2002 civic monitors
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yeah , the confirmed usually goes with it , just trying to understand the monitors , we'll get it straightened out at some point
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Hammer Time
Ultimate Carjunky
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Oct 22, 2018, 11:21 AM
Post #6 of 8
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Re: 2002 civic monitors
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Setting a monitor means that the car has been driven through all the test situations that would trigger a code and none have triggered. Each monitor has different drive cycles that the car has to go through to reset that particular monitor.
When you clear a code or disconnect a battery you make all of them start over and they will have to complete a drive cycle before being set again..
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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dr.donut
User
Oct 23, 2018, 1:36 PM
Post #7 of 8
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Re: 2002 civic monitors
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took the honda for a ride and the monitors cleared except for one , you're allowed one , no codes came up so I got to the garage asap , we're all legal now , evap codes come up once in a while on the other cars too , you'd think if it was a real problem they would come up periodically but they don't , the guy at work got his inspection with busted windshield , cel on and cracked lens good for him eh. ?
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 23, 2018, 1:59 PM
Post #8 of 8
(1762 views)
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Re: 2002 civic monitors
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Contrary to popular belief, EVAP codes can be permanently fixed. You just have to smoke test the system t find the leak. The most common sources of leaks are the gas cap or the vent valve but any of the rubber hoses can leak also.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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