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Old 08-28-2008, 12:23 AM   #1
chav2531
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1997 Impreza
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Unhappy 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
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Old 08-28-2008, 01:07 PM   #2
gathermewool
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Quote:
Originally Posted by chav2531 View Post
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.
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Old 08-28-2008, 01:18 PM   #3
chav2531
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Thanks bud! I was just so disapointed yesterday with my car, that my head wasn't thinking right.
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Old 08-28-2008, 08:12 PM   #4
surowrxa
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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.
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Old 08-28-2008, 09:05 PM   #5
chav2531
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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?
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Old 08-28-2008, 09:27 PM   #6
RexyGirl
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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.
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Old 08-29-2008, 01:40 AM   #7
chav2531
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is reseting the code that way, the same way as getting a diagnostic scanner and erasing the code?
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Old 08-29-2008, 05:04 AM   #8
surowrxa
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Quote:
Originally Posted by chav2531 View Post
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.
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Old 08-29-2008, 07:58 PM   #9
RexyGirl
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Quote:
Originally Posted by surowrxa View Post
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.
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Old 08-30-2008, 01:17 PM   #10
chav2531
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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"?
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Old 08-30-2008, 01:55 PM   #11
RexyGirl
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You need to get the code pulled again and post back what it is.
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Old 08-30-2008, 02:10 PM   #12
chav2531
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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?
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Old 08-30-2008, 02:23 PM   #13
chav2531
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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
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Old 08-30-2008, 04:06 PM   #14
chav2531
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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?
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Old 08-31-2008, 02:41 PM   #15
chav2531
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anyone help please???
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Old 08-31-2008, 04:14 PM   #16
RexyGirl
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Do you have a raw fuel smell at all?

PM me your email address and I will send you some troubleshooting tips.
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Old 09-24-2008, 06:28 PM   #17
Not-EWRX
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Update??? I have this same problem
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Old 09-25-2008, 02:17 PM   #18
subaruNV
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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
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Old 11-20-2008, 01:11 PM   #19
Boudreau
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I am having the same problem, 2002 wrx..
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Old 12-11-2008, 12:04 PM   #20
tdeuce82
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i'm having the same issue with an 00 RS. my car idles rough tho, too.
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Old 06-15-2009, 02:22 PM   #21
Brisky
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Did we find out how to fix the problem?
Bad solenoid?
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Old 02-09-2010, 08:58 PM   #22
iluvdrt
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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.
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Old 02-21-2010, 11:54 AM   #23
93egsi
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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!
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