Code P0440 Evap.emission System

chav2531 · 08-28-2008, 12:23 AM

I bought the car a couple of weeks ago car came from Vermont 1997 Impreza awd 5-speed 130K new trans. 6 months ago there is a stack of reciepts of parts replaced Only two owners which were both ladies. I paid $1600 for it what do you think?
Just like the title says ive been dealing with this code from hell. I have tried to get it registered and all but fails deq emissions. Everything is ready except evap. it says "NOT READY" the car does have some rust here and there. I replaced gas cap cycled it and CEL comes back smoke tested it and no leaks i replaced purge control solenoid and CEL still comes back. Everytime i clear CEL i drive it for about 2-3 days and it will pop up on the HWY. It only comes when it gets below half tank. my tags are now 3 weeks expired and school is around the corner what else should i do??? change filler neck? any other solenoids to check? please help thanks

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gathermewool · 08-28-2008, 01:07 PM

Quote:

Originally Posted by chav2531

I bought a 1997 Impreza with 130k for $1600. The transmission is new as of 6 months ago, and it came with a stack of maintenance receipts from the two previous owners. Seems like a good deal, eh comrades?

The problem:

I have been dealing with a P0440 code, and it won't pass emissions. I've replaced the gas cap, smoke tested it with no visible leaks and have also replaced the purge control solenoid, but he CEL comes back after 2-3 days after I clear it. It only seems to come on when th tank is less than half full. My tags are three weeks past expired, and I'm not sure what to do next. Could it be the filler neck? Please help. Thanks

Fixed. What you typed took me forever to read.

chav2531 · 08-28-2008, 01:18 PM

Thanks bud! I was just so disapointed yesterday with my car, that my head wasn't thinking right.

surowrxa · 08-28-2008, 08:12 PM

Yeah, it could be the filler neck. Look at it with a flashlight through the opening. If you see any rust at all, you have a winner (loser). Why this didn't surface in a smoke test I don't know. I never smoke tested the Forester when the code popped up, because I saw the rust and just knew. I replaced the gas cap first just to be sure though.

The plastic cover in the wheel well traps moisture and various cruds, rusting the crap out of your filler neck.

chav2531 · 08-28-2008, 09:05 PM

Whoooa i just finished replacing the filler neck and other corroded tubes around the vapor canister. The filler neck was rusted out! Im going to delete the code and see if it comes back! When you changed the filler neck and gas cap did the code go away?

RexyGirl · 08-28-2008, 09:27 PM

The code has to be reset. One way you can do this on your own is to disconnect the battery for a few minutes. If the light comes back, you have another problem.

chav2531 · 08-29-2008, 01:40 AM

is reseting the code that way, the same way as getting a diagnostic scanner and erasing the code?

surowrxa · 08-29-2008, 05:04 AM

Quote:

Originally Posted by chav2531

is reseting the code that way, the same way as getting a diagnostic scanner and erasing the code?

Yep. You'll have to drive around a couple days (couple hundred miles or so) before the emissions system will read "ready" for your inspection.

RexyGirl · 08-29-2008, 07:58 PM

Quote:

Originally Posted by surowrxa

Yep. You'll have to drive around a couple days (couple hundred miles or so) before the emissions system will read "ready" for your inspection.

Oh yeah, forgot about that part...we don't have emissions in FL

If the light does come back on, let us know what the code is and we'll help if we can.

chav2531 · 08-30-2008, 01:17 PM

After driving it for 3 days the light came back on.. I dont know what else can be the problem. Do the speed sensors have anything to do with it no being"ready"?

RexyGirl · 08-30-2008, 01:55 PM

You need to get the code pulled again and post back what it is.

chav2531 · 08-30-2008, 02:10 PM

P0440 Evaporative Emission system Malfunction
when the CEL turned on for the very first time, which was about a month ago there were two more codes which were
P0500 - Vehicle speed sensor malfunction
P1540 Manufacturer Specific Code
WHen i took it to a suabru mechanic the first time he just erased them all and the only one that comes back is P0440. The only solenoid i have changed is the purge control solenoid.. which other ones should i also look at?

chav2531 · 08-30-2008, 02:23 PM

OH and one more thing the very first time i took it to DEQ the Evaporative was "ready", but it failed because it had 3 codes. The last couple of times i took it to the DEQ it read evaportative "Unready" but there were no codes

chav2531 · 08-30-2008, 04:06 PM

I just checked two other solenoids. I connected the blue plugs under the steering column to see if the solenoids were operating and the canister valve ventilator next to the vapor canister box was NOT operating, it wasnt making any noise, is that normal? I also checked the solenoid for canister purge. I was able to blow air right through the two vacume lines is this solenoid suppose to be closed when out of the car, just like the purge control solenoid?

chav2531 · 08-31-2008, 02:41 PM

anyone help please???

RexyGirl · 08-31-2008, 04:14 PM

Do you have a raw fuel smell at all?

PM me your email address and I will send you some troubleshooting tips.

Not-EWRX · 09-24-2008, 06:28 PM

Update??? I have this same problem

subaruNV · 09-25-2008, 02:17 PM

I to have the same problem but I don't get a check engine light on my 06 Wrx so I didn't no it wasn't going to pass untill the day it got tested

Boudreau · 11-20-2008, 01:11 PM

I am having the same problem, 2002 wrx..

tdeuce82 · 12-11-2008, 12:04 PM

i'm having the same issue with an 00 RS. my car idles rough tho, too.

Brisky · 06-15-2009, 02:22 PM

Did we find out how to fix the problem?
Bad solenoid?

iluvdrt · 02-09-2010, 08:58 PM

I am bumping this for answers.

I just bought a beater 99 Legacy wagon and it has the P0420/P0440 codes.

I am not worried about the 420, I can fix that one, but I have no idea what the 440 is. I think in 15 years dealing with cars I have never ran into that one before.

I'll be pulling the motor for a reseal/tune up this weekend. I'll check the gas filler tube, but I haven't noticed any fuel smells. When the tube rotted out on my 98 wagon I smelled fuel.

93egsi · 02-21-2010, 11:54 AM

bump b/c i have a 2001 impreza L wagon with a p0440 code,i changed gas cap but came back few weeks later, how do i check/replace filler tube? do you have to take rear bumper off?

heeeelp!

08-28-2008, 12:23 AM	#1
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	Code P0440 Evap.emission System I bought the car a couple of weeks ago car came from Vermont 1997 Impreza awd 5-speed 130K new trans. 6 months ago there is a stack of reciepts of parts replaced Only two owners which were both ladies. I paid $1600 for it what do you think? Just like the title says ive been dealing with this code from hell. I have tried to get it registered and all but fails deq emissions. Everything is ready except evap. it says "NOT READY" the car does have some rust here and there. I replaced gas cap cycled it and CEL comes back smoke tested it and no leaks i replaced purge control solenoid and CEL still comes back. Everytime i clear CEL i drive it for about 2-3 days and it will pop up on the HWY. It only comes when it gets below half tank. my tags are now 3 weeks expired and school is around the corner what else should i do??? change filler neck? any other solenoids to check? please help thanks * Registered users of the site do not see these ads.

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08-28-2008, 01:18 PM	#3
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	Thanks bud! I was just so disapointed yesterday with my car, that my head wasn't thinking right.

08-28-2008, 08:12 PM	#4
surowrxa Scooby Specialist Member#: 102895 Join Date: Dec 2005 Chapter/Region: MAIC Location: Pittsburgh Vehicle: '12 Forester '08 Legacy	Yeah, it could be the filler neck. Look at it with a flashlight through the opening. If you see any rust at all, you have a winner (loser). Why this didn't surface in a smoke test I don't know. I never smoke tested the Forester when the code popped up, because I saw the rust and just knew. I replaced the gas cap first just to be sure though. The plastic cover in the wheel well traps moisture and various cruds, rusting the crap out of your filler neck.

08-28-2008, 09:05 PM	#5
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	Whoooa i just finished replacing the filler neck and other corroded tubes around the vapor canister. The filler neck was rusted out! Im going to delete the code and see if it comes back! When you changed the filler neck and gas cap did the code go away?

08-28-2008, 09:27 PM	#6
RexyGirl Scooby Specialist Member#: 63616 Join Date: Jun 2004 Chapter/Region: South East Vehicle: 1996 Volvo 850 Turbo with mods :)	The code has to be reset. One way you can do this on your own is to disconnect the battery for a few minutes. If the light comes back, you have another problem.

08-29-2008, 01:40 AM	#7
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	is reseting the code that way, the same way as getting a diagnostic scanner and erasing the code?

08-30-2008, 01:17 PM	#10
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	After driving it for 3 days the light came back on.. I dont know what else can be the problem. Do the speed sensors have anything to do with it no being"ready"?

08-30-2008, 01:55 PM	#11
RexyGirl Scooby Specialist Member#: 63616 Join Date: Jun 2004 Chapter/Region: South East Vehicle: 1996 Volvo 850 Turbo with mods :)	You need to get the code pulled again and post back what it is.

08-30-2008, 02:10 PM	#12
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	P0440 Evaporative Emission system Malfunction when the CEL turned on for the very first time, which was about a month ago there were two more codes which were P0500 - Vehicle speed sensor malfunction P1540 Manufacturer Specific Code WHen i took it to a suabru mechanic the first time he just erased them all and the only one that comes back is P0440. The only solenoid i have changed is the purge control solenoid.. which other ones should i also look at?

08-30-2008, 02:23 PM	#13
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	OH and one more thing the very first time i took it to DEQ the Evaporative was "ready", but it failed because it had 3 codes. The last couple of times i took it to the DEQ it read evaportative "Unready" but there were no codes

08-30-2008, 04:06 PM	#14
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	I just checked two other solenoids. I connected the blue plugs under the steering column to see if the solenoids were operating and the canister valve ventilator next to the vapor canister box was NOT operating, it wasnt making any noise, is that normal? I also checked the solenoid for canister purge. I was able to blow air right through the two vacume lines is this solenoid suppose to be closed when out of the car, just like the purge control solenoid?

08-31-2008, 02:41 PM	#15
chav2531 Scooby Newbie Member#: 187998 Join Date: Aug 2008 Chapter/Region: NWIC Location: Oregon Vehicle: 1997 Impreza GREEN	anyone help please???

08-31-2008, 04:14 PM	#16
RexyGirl Scooby Specialist Member#: 63616 Join Date: Jun 2004 Chapter/Region: South East Vehicle: 1996 Volvo 850 Turbo with mods :)	Do you have a raw fuel smell at all? PM me your email address and I will send you some troubleshooting tips.

09-24-2008, 06:28 PM	#17
Not-EWRX Scooby Specialist Member#: 158043 Join Date: Aug 2007 Chapter/Region: RMIC Location: SLC Vehicle: old Something new SWP	Update??? I have this same problem

09-25-2008, 02:17 PM	#18
subaruNV Scooby Specialist Member#: 154549 Join Date: Jul 2007 Location: Reno, NV Vehicle: 2006 DOM 3 Powered WHITE/ EQ Tuned 350Whp	I to have the same problem but I don't get a check engine light on my 06 Wrx so I didn't no it wasn't going to pass untill the day it got tested

11-20-2008, 01:11 PM	#19
Boudreau Scooby Newbie Member#: 163846 Join Date: Nov 2007 Chapter/Region: MWSOC Location: Minnesota Vehicle: 2002 wrx silver	I am having the same problem, 2002 wrx..

12-11-2008, 12:04 PM	#20
tdeuce82 Scooby Newbie Member#: 197219 Join Date: Dec 2008	i'm having the same issue with an 00 RS. my car idles rough tho, too.

06-15-2009, 02:22 PM	#21
Brisky Scooby Specialist Member#: 148078 Join Date: May 2007 Chapter/Region: NWIC Location: Spokane, WA Vehicle: 1993 Legacy L AWD Silver	Did we find out how to fix the problem? Bad solenoid?

02-09-2010, 08:58 PM	#22
iluvdrt Scooby Specialist Member#: 46248 Join Date: Oct 2003 Chapter/Region: RMIC Location: DRTY Autosports Denver, Co Vehicle: 2012 outback 2.5 sky blue	I am bumping this for answers. I just bought a beater 99 Legacy wagon and it has the P0420/P0440 codes. I am not worried about the 420, I can fix that one, but I have no idea what the 440 is. I think in 15 years dealing with cars I have never ran into that one before. I'll be pulling the motor for a reseal/tune up this weekend. I'll check the gas filler tube, but I haven't noticed any fuel smells. When the tube rotted out on my 98 wagon I smelled fuel.

02-21-2010, 11:54 AM	#23
93egsi Scooby Newbie Member#: 142653 Join Date: Mar 2007	bump b/c i have a 2001 impreza L wagon with a p0440 code,i changed gas cap but came back few weeks later, how do i check/replace filler tube? do you have to take rear bumper off? heeeelp!