STUPID P1456! please help me

justmoddin · Mar 15, 2014

okay i have a 2002 accord sedan. My check engine light has been on for awhile i scanned it, it came up p1456, I have done a lot of searching on this site about the code and recently replaced the canister vent shut valve(17310-S0X-A02) I drove about 22 miles and check engine is on again my question is what should i try next to fix this code I do not smell any gas should I try the part in the link next http://www.amazon.com/Dorman-DOR911-754-Vapor-Canister-Purge/dp/B009IF1YJY/ref=sr_1_2?s=automotive&ie=UTF8&qid=1394937540&sr=1-2&keywords=911-754

I think its just called a 2way valve please help 6thgenners! im so sick of seeing this on my dash :greenchainsaw:

RedRyder · Mar 15, 2014

I've had this for quite awhile now, can't get rid of it. I have replaced the canister, shutoff valve, 2-way valve, & solenoid and still have the code. I had a smoke test done and thought I fixed the car after that, but the code came back. Dont know what else to do.

Before you go buying parts in the dark, I'd try a smoke test. Maybe you'll be luckier than me.

justmoddin · Mar 15, 2014

How is the smoke test done and what smoke comes out of my part thats leaking and i know thats the faulty part, thanks for the quick response btw, is a smoke test something i can do myself?

RedRyder · Mar 16, 2014

It is something you can do yourself, but the equipment to do it right is expensive and I'm not sure you can rent it. I had mine done at Tire Discounters. They said it would be $90 for the test which I was taken aback by haha, but then it ended up being free because they saw the smoke exiting pretty quickly so they didn't use much.

justmoddin · Mar 16, 2014

NICE it being free!! but unfortunate you haven't been able to solve it. I read some of your posts about it and it seems like you have been through a lot trying to figure this stubborn code out. Did you ever look into the ORVR?

justmoddin · Mar 16, 2014

just wanted to add i have not replaced my gas cap should i just get a stant cap or do i need oem

bairdandrew77 · Mar 16, 2014

If that's the same code I had before, get an oem gas cap if you're going to replace the original. I used 2 AutoZone caps and the code always came back. Spent the extra money on oem, code never came back in the past 4 years

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Teesak · Mar 16, 2014

make sure you gas cap clicks multiple times when you put it back on. I always turn it half a full rotation after it starts clicking now because when i didnt it i'd got the code on and off, but i havent had the problem since doing so. hope its that easy for you as well.

justmoddin · Mar 16, 2014

well i will roll up to autozone and have them scan the code because im not sure if its the p1456 or not but that is the code i had before i replaced the canister solenoid so idk maybe its a new code if the p1456 is fixed but i doubt it..... will update soon as i know :icon_axe:

xci.ed6 · Mar 16, 2014

Smoke tests are meh. I prefer vac/press + cap + gauge, towards 14.5 psi = leak

Easy peasy, no special tools required.

Edit: soapy water in spray bottle usefull w/ press if you want to find the leak

STUPID P1456! please help me

justmoddin

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RedRyder

Save the manuals

justmoddin

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RedRyder

Save the manuals

justmoddin

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justmoddin

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bairdandrew77

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Teesak

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justmoddin

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xci.ed6

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