p1456 trouble code

wasabiman · 09-21-2007, 07:24 PM

So, I've searched other threads on this (P1456 fuel tank leak), and the general consensus is it's a loose gas cap. I got the code yesterday, tightened the cap properly (did seem to be loose), but it was mostly all the way on. I drove the car the rest of the day, and all day today and the light is still on. How long does it usually take for a CEL to clear itself if the problem is corrected? I thought about just buying a new gas gap, decided to wait a couple more days. Hoping that normal driving won't hurt the motor with this CEL on. I could disconnect the battery and reset the code, but I don't want to clear the light temporarily and have the CEL come back on the morning of our group drive to MT. Palomar. Any advice is appreciated, Thanks.

s2000isu · 09-21-2007, 07:34 PM

it has taken my car a week to reset. If it bothers you that much pull the battery terminal to reset te ecu. If you have a stock radio make sure you have the code handy to get it to work again.

philiam · 09-21-2007, 10:02 PM

If you don't have the radio code, you can hook up a 9 volt battery to the the cables or use a battery charger if you have one handy.

gomarlins3 · 09-21-2007, 11:41 PM

According to the software I have, the P1456 is the manufacturer control auxiliary emissions control (fuel tank system): i.e. gas cap.

It should reset itself after a few drives. If not, try a new gas cap.

wasabiman · 09-22-2007, 07:36 AM

thanks guys.

Vezna31 · 09-22-2007, 07:59 AM

I think the one time I was actually an idiot and left my gas cap at the station, I went to Pepboys and got a locking gas cap for $5 or $6.

HELL_ON_WHEELS · 09-22-2007, 09:14 AM

stupid gas cap LOL

09-21-2007, 07:24 PM	#1 (permalink)
wasabiman Member Join Date: Sep 2007 Location: SAN DIEGO, SOUTHBAY Posts: 95	p1456 trouble code So, I've searched other threads on this (P1456 fuel tank leak), and the general consensus is it's a loose gas cap. I got the code yesterday, tightened the cap properly (did seem to be loose), but it was mostly all the way on. I drove the car the rest of the day, and all day today and the light is still on. How long does it usually take for a CEL to clear itself if the problem is corrected? I thought about just buying a new gas gap, decided to wait a couple more days. Hoping that normal driving won't hurt the motor with this CEL on. I could disconnect the battery and reset the code, but I don't want to clear the light temporarily and have the CEL come back on the morning of our group drive to MT. Palomar. Any advice is appreciated, Thanks.

09-22-2007, 09:14 AM	#7 (permalink)
HELL_ON_WHEELS Senior Member Join Date: Apr 2006 Location: SoCal Posts: 639	stupid gas cap LOL __________________ "Drive it like you stole it"

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09-21-2007, 07:34 PM	#2 (permalink)
s2000isu Senior Member Join Date: Oct 2006 Location: pa Posts: 1,171	it has taken my car a week to reset. If it bothers you that much pull the battery terminal to reset te ecu. If you have a stock radio make sure you have the code handy to get it to work again.

09-21-2007, 10:02 PM	#3 (permalink)
philiam Senior Member, Literally Join Date: Sep 2007 Location: woodland hills, CA Posts: 1,637	If you don't have the radio code, you can hook up a 9 volt battery to the the cables or use a battery charger if you have one handy.

09-21-2007, 11:41 PM	#4 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,811	According to the software I have, the P1456 is the manufacturer control auxiliary emissions control (fuel tank system): i.e. gas cap. It should reset itself after a few drives. If not, try a new gas cap.

09-22-2007, 07:36 AM	#5 (permalink)
wasabiman Member Join Date: Sep 2007 Location: SAN DIEGO, SOUTHBAY Posts: 95	thanks guys.

09-22-2007, 07:59 AM	#6 (permalink)
Vezna31 Resident Track Whore :) Join Date: Nov 2006 Location: Chula Vista, CA Posts: 1,285	I think the one time I was actually an idiot and left my gas cap at the station, I went to Pepboys and got a locking gas cap for $5 or $6.