Boost leak?

[Brezina542]

Hey guys,
So for the past few days, the FiST has not felt as punchy as usual. WOT third gear on the entrance ramp feels a lot slower than normal. And when I look at AP it say I get a max of 253tq and 200hp (today it was 196.9 and wouldn’t go above that) ; Normally would be in 275tq range and 216-217 hp range. Intake temp are around 60°F. AFR seems normal aswell with wide open throttle being around 11.2 - 11.3. Not sure why I would be seeing (and definitely feeling ) a loss in power. When I do 4th gear runs tho, the tq numbers do go up dramatically to about 280 at around 3k. I’m still on stock turbo, and just got an oil change.

I also feel it might be my gas, because around the time it started happening, I fueled up on 93 from Wawa. Every other day I notice after about 15 minutes of driving my timing adjustment will be a little weird. It will say that the min recorded was -.50 or so, but when I go wide open, it’s adjusting up to +3-4 degrees and I never visually see it go negative. OAR is -1, so I really don’t know. I’m gonna wrench it tomorrow sometime and see if there’s any leaks and such, clean the filter, and mabey get some know quality fuel and see if anything changes.

many tips would be much appreciated

thanks

Edit : main reason for title is that my boost pressure build up to around 24-25 psi then drops off fast down to 21-20 and incrementally lowers further but pretty slow. I’ve never noticed this (or if this is normal for this car running this boost)

 

[2FiST2FoRS]

I got 93 from Wawa one time back in the day in my SRT4 and it ran like complete poo. I have stuck to top tier since. Sorry, that's all I got.

Sent from my XT1635-02 using Tapatalk

 

[TaxRooster]

I got 93 from Wawa one time back in the day in my SRT4 and it ran like complete poo. I have stuck to top tier since. Sorry, that's all I got.

Sent from my XT1635-02 using Tapatalk

Just like he said.

Stick to Top Tier gas.

Wawa, Sheetz, QuickTrip they all have shitty gas.

Sent from my Samsung Note using Tapatalk

 

[Brezina542]

Just like he said.

Stick to Top Tier gas.

Wawa, Sheetz, QuickTrip they all have shitty gas.

Sent from my Samsung Note using Tapatalk

yea i understand, i don't usually get gas there but was in a bind.

i did cycle it and got good gas from shell, and still the same problem is occurring.

no boost leak when i checked, boost has been holding aswell ( might have just been a one off on the pressure reading on AP)

currently waiting on plugs from ron as mine are due anyway and gonna see if that fixes it.

if not ill try to work it out but for now this is where im at, also just cleaned filter aswell and wasnt it.

Edit: also OAR has said -1 even with the wawa gas witch made me skeptical but you never know

 

[Brezina542]

Ok, spark plugs came in as well as induction hose from whoosh.

seems car is running better after spark plug replacement, old plugs didnt look to bad but the cyl2 plug was pretty far out of spec, my feeler gauge still had gap after the lag leg of my feeler gauge ( 0.45) so it was pretty far out of wack.

in the process of putting it all back together i almost got through it without a hiccup. until i tried installing the green clip on the induction hose. when putting it back together the green clip snapped in half. i can try JB welding it back together but just wanted to buy a new one to put on ; the silicone was just to long on the end of the connection and even after it broke wouldnt let the clip slip on so i will have to probably file it down just a hair.

im just looking for the name of this or a part number. just the green plastic clip that slips over. much appreciated.

 

[Brezina542]

update:

drove to work today and did some pulls. yes i data-logged most of them, but didn't set my parameters before hand so yes, im retarded.

on first pull, things seems a little off again ( cyl2 and cyl3 started having correction again, 1 and 4 were fine )

i didnt log the second pull ( of course worst i had ) as the corrections for cyl 3 plummeted to -1.66 and Cyl 2 to 1.30.

i did log some more but did not do the setup correctly and it didnt log the cyl2-4 corrections.

here is what i do have

https://datazap.me/u/zackery-joseph-brezina/log-1589233264?log=0&data=0-5-10&zoom=312-441

any help would be appreciated, and again back to my very first point, my car isnt holding boost.

after just six second it dropped from 24lbs to under around 12 i belive from what the log shows

and insite would be much appreciated, thanks

 

[Brezina542]

i will try to get better logs soon to see whats actually going on too