I GIVE UP! Possible evap problem

[Ray]

So for a while now my car has been acting up. Here are the symptoms:

-Car sputters and backfires And loses power at about 5K Rpm's

-However if I ease Into the throttle And let the RPMs claims very slowly it will smoothly go through the RPMs.

-It fills really slowly at the gas station

-At around one quarter of a tank, If I go around a corner fast the car dies for 5-10 seconds, then comes Right back to life.

Things I've tried:

- Replaced evap solenoid Next to Charcoal canister

-Cleaned out charcoal canister that was all broken up inside.

-Even tried retuning the car. With an access-port

I know it's hard to diagnose over the Internet but has anybody had similar symptoms??

Really appreciate any info or advice!

 

[Meyagi]

engine light on?

 

[Ray]

It was until I retuned, dumb me forgot to check it with the accessport, no fear, it will be back on soon, always comes back! Haha

 

[dsmith]

idk about everything else really, but I know that the td04 looses power after 5k RPMS. it tapers downwards a lot. not sure if that's what you mean by losing power but worth throwing out there.

 

[Ray]

Not Definitely not like that, It almost sounds like anti-lag launch control haha I wish I could post videos but I only have my phone, Waiting on a laptop battery.

 

[Ray]

Maybe I can post videos....

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[Matt]

I can't see the videos on my phone but a bad upstream o2 sensor will make the car like complete ass. Check the code and report back fresh ray

 

[Vertigo101]

Maybe I can post videos....

Well that's not right for sure.

My car is whisper quiet replaced no exhaust with stock 02 wrx exhaust. I do hope you get your problem fixed soon ray that car is beastly!

 

[02 WRX Chris]

With is stumbling that bad, do you think it may be a fuel pump??  Checked the fuel pressure while driving or the air fuel gauge?  

 

[Ray]

That ha crossed my mind, idk how I check my fuel pressure or my air fuel, I dot have an accessport anymore haha

 

[02 WRX Chris]

doh! well then....i dunno man.  It seems like the more boost you get, your car goes all crazy so that lean towards no enough fuel.

 

[Meyagi]

fuel pumps just die most of the time. like matt said i kinda suspect the front 02 sensor.

and chris i still want my intake manifold back. now.

 

[Ray]

I've filled up twice since I cleaned out the charcoal canister, and it's filled up like it should! Still running like poo, CEL is back. Ill get that read soon.

 

[02 WRX Chris]

Mike, I told you when your gonna get your manifold back so you can stop bugging me about it.

 

[2point5RS_Dan]

Take it to PMs and resolve that issue ASAP please.

 

[Meyagi]

yeah read the code and let me know what it is.

 

[Ray]

Maybe it's my FPR? The cel was an evap system leak I remember that now. Cleaning the charcoal canister seemed to have fixed the filling issue, the evap leak could even be as simple as a bad gas cap. And maybe the sputtering, backfiring is unrelated to the evap leak...

 

[Matt]

I've never seen an evap code lead to poor running conditions. All it really does it recirculate fuel vapors.

 

[gakosaurusrex]

seafoam it! if its a o2 it should throw a code right? maybe its a clogged fuel filter?