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HELP! 2000 civic si CEL p1456 won't go away

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Old 05-04-2011, 05:14 PM   #1
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Icon2 HELP! 2000 civic si CEL p1456 won't go away

Hello. I'm starting this thread to get some help on my si
Recently check engine light turned on. Ran the obd2 comp and it happens to be P1456
I know this code is widely common on all hondas due to bad sealing of the gas cap
However, this is not the gas cap. I swapped the gas cap from my s2k and approximately 90 miles after I reset the ECU , it came back on
My fuel gauge floats a little so I thought maybe the fuel sending unit is bad but I think it's due to leakage in the fuel tank and that's what the code p1456 is all about
I really don't know where to start
I did some research and I'm leaning towards ORVR valve but not sure
Any inputs would be appreciated
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Old 05-04-2011, 07:55 PM   #2
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

Bump!
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Old 05-05-2011, 08:14 AM   #3
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

Any ideAs?
I don't smell gas
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Old 05-13-2011, 02:54 PM   #4
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

any help?
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Old 05-13-2011, 04:33 PM   #5
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

I had the same issue and then did mini me swap, and haven't had cel come back on yet, so I don't know
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Old 05-13-2011, 06:10 PM   #6
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

What's exactly minimi swap? I'm new to this Honda stuff
Besides my s2k
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Old 05-13-2011, 08:28 PM   #7
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

Mini me is a D15 non-vtec block with a D16 vtec head...the LS/V of the single cam world haha
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Old 05-14-2011, 12:21 AM   #8
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Default Re: HELP! 2000 civic si CEL p1456 won't go away

Quote:
Originally Posted by awdgsx96 View Post
Mini me is a D15 non-vtec block with a D16 vtec head...the LS/V of the single cam world haha
or a d16y7 with a y8 head lol.
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02, 2000, 2004, cel, check, civic, codes, ecu, engine, honda, light, ob2, p1456, reset, rsx, si

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