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Old 12-28-2018, 05:57 AM   #101
bue car
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You can also set the readiness monitors to always good.
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Old 12-28-2018, 02:26 PM   #102
Shik
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Quote:
Originally Posted by STEVEMS3 View Post
had a quick question im in the process of replacing my fuel tank and subframe ect..
Fun job! I just did that on my son's '02 Impreza this past weekend. I planned on deleting the evap/canister but by the time I was done, i just wanted to get the car out of the garage so I put everything back to normal for now. All of the hoses basically end up right where they need to be so no worries on putting things back to stock. I'll delete the stuff when I get some free time.

Good luck!
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Old 01-02-2019, 04:09 PM   #103
FuelCutOff
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Default Need clarification please

Need some help if anyone can spare the time to reply.

I have an 04 forester xt. I've gutted everything as in this DIY, but what I see in front me me is slightly different as far as I can tell. I need help with B in the image.

From the image:
A = leave open per DIY since it goes to fuel filter overflow
B = ??? -> can't tell what this is for or where it leads; can I leave this open?
C = add filter per DIY since it's for gas tank breather
D = cut down and leave open since it goes under the hood
E = T-fitting attached to C which I'll remove when putting filter on


Last edited by FuelCutOff; 01-02-2019 at 04:32 PM.
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Old 01-09-2019, 12:37 PM   #104
Stiguy04
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Quote:
Originally Posted by Bo Bandy View Post
For anyone wishing to do this in the future, if you are not able to disable to codes right away and don't want any check engine lights...

In the engine bay keep the evap solenoid connected to the electrical harness but no hoses connected to it. For the rear charcoal cannister etc. Keep the electrical harnesses plugged in and connect the hoses to each other but not hardwired to the car so the evap system isn't actually operating but the car thinks it's still there.

If anyone needs pics I can go take some cause I'm not that great at explaining things...
Does anybody have any clarity on this method? Specifically the last part about connecting the hoses to each other but not hardwired to the car. I couldn't fill my tank without it clicking off every couple of seconds unless I let the fuel trickle in. Takes like 10+ min to fill up. I ended up removing the fuel vent hose from charcoal canister to get by, but still getting a CEL P1443. The canister looks good, nothing loose or any debris coming out. I can blow thru the valve so I know air can pass through. I left everything up front on the manifold connected. Maybe the purge valve is bad and it doesn't matter what I do it'll still throw the code...
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Old 05-30-2019, 07:56 PM   #105
zcivic
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I really wish I took a picture of how I routed mine. I had to replace my fuel tank and filler neck while I was at it I decided to remove the EVAP stuff. I didn't leave any lines open but I can't get the car to take gas. Does anyone have a suggestion on what maybe my issue. I have tried disconnecting the valve on the back of the filler neck. I left one line totally off and it still wont take gas and it seems like it should still venting the tank.
Thanks,
Randy
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Old 06-02-2019, 06:54 PM   #106
bue car
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It needs to vent and you capped it all off. So it's not filling. This is why there is a complaint of fuel smell in the garage, spilling when fuel up too much, etc after the removal. She need s to breath / displace the air with fuel while filling. No where for the air to go except back up the neck causing the pump to shut off with the pressure.
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Old 06-09-2019, 01:42 PM   #107
AnthonyF24
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Has anyone done this to an 08+? I have a 13 and started to look for a spot to mount my tank and came across all this in the in the back, mines a hatchback.
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Old 06-10-2019, 06:58 AM   #108
zcivic
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Is that not a vent where you place the 3/4 filter? well mine was a 3/4. Comes off the white plastic one in the middle.
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Old 07-26-2019, 06:15 PM   #109
zcivic
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Default How To: Evap + Charcoal Canister removal

I hate to bring this back up, just tired of spending 20 minutes for a partial fill up. Is this vent the one that's suppose to displace air/vapor and allow my tank to fill up.

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Old 07-30-2019, 02:47 AM   #110
bue car
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I believe so...

Still have not run my own set up haha

sad
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Old 08-10-2019, 10:09 AM   #111
Luxkeiwoker
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Guys I need some advice here. I'm having my 2006 Hawkeye STI on the hoist in this very moment, trying to remove the EVAP canister, since it was throwing codes and pissing fuel. I tried to follow the guide in the first post, but the piping at the canister looks somewhat different



What shall I do with the hardline (marked in red)? It's ending up in the framerail and probably routing somewhere either to the filler neck or the tank.

Any ideas?

(Btw codes will be disables with a tactrix)
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Old 08-10-2019, 06:43 PM   #112
bue car
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It's the vent. It literally goes up about 25mm and that's it. It's an open pipe into the frame rail.
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Old 08-11-2019, 01:30 PM   #113
Luxkeiwoker
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Quote:
Originally Posted by bue car View Post
It's the vent. It literally goes up about 25mm and that's it. It's an open pipe into the frame rail.
Thanks, after some tinkering I got the whole assembly out and you're right - it is just a plastic coupler going into the framerail which can be simply pulled out.
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Old 08-11-2019, 02:23 PM   #114
bue car
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Glad you got it!
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Old 08-16-2019, 09:00 AM   #115
Luxkeiwoker
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Guys I need some advice on the CELs to be disabled. I've disabled so far
  • (P0442) EVAP LEAK DETECTED (SMALL)
  • (P0447) EVAP VENT CONTROL CIRCUIT OPEN
  • (P0448) EVAP VENT CONTROL CIRCUIT SHORTED
  • (P0451) EVAP PRESSURE SENSOR RANGE/PERF
  • (P0452) EVAP PRESSURE SENSOR LOW INPUT
  • (P0453) EVAP PRESSURE SENSOR HIGH INPUT
  • (P0456) EVAP LEAK DETECTED (VERY SMALL)
  • (P0457) EVAP LEAK DETECTED (FUEL CAP)
  • (P0458) EVAP PURGE VALVE CIRCUIT LOW
  • (P0459) EVAP PURGE VALVE CIRCUIT HIGH
  • (P1400) FUEL TANK PRESSURE SOL. LOW
  • (P1420) FUEL TANK PRESSURE SOL. HIGH INPUT

For some reason, P1400 keeps coming back, everytime I start the car.


How is that even possible, after disabling the code?!

The only thing I left enabled is

(P1443) VENT CONTROL SOLENOID FUNCTION PROBLEM
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Old 09-11-2019, 11:00 PM   #116
2subies4me
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I've read through this thread and watched this video:

I have a 2005 Impreza (not wrx!) with the H4SO engine. It has a small evap leak code. I'm thinking of just capping the system off but I don't have this Cobb thing/software, or know how to 'tune' the ECM to remove codes. I have a regular ODB code reader and resetter.

It's not the gas cap. I checked that and reset the code twice and it comes back after ~50 miles of driving. I can't pass inspection (no emissions, but they do require the CEL light to be off and the sensors to be Ready).

Since I can't mask the code off, I need to fool the computer into thinking the solenoids are still there. I've seen a few references to sticking a 50 ohm resistor in the connector to emulate the solenoid. Does anyone have more specific directions (which connectors, where are they located)?

If I do just that and leave the EVAP cannister and lines in place, will the code likely go away?
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