Fbo issues.. please chime in :(

[elitesales305]

Hey everyone..
Went fbo early this week..
vrsf cp
" dp
" 7 inch fmic
" outlet
K&n drop in
Dp is catless!


When we installed the dp the post o2 was pretty much welded on the stock dp..
It's currently halfway threaded in so I can put around while I wait for new Bosch o2 in the mail..
Also had some shitty new tire issues but currently got 4s all the way around.

Getting the 3106 code which I hear is notorious with the catless dp.. or I'm getting it t cuz the rear o2 is half way installed..
First and second, pull.. not hard but at least pulls me back a bit.. from there on, it feels like I'm pulling a trailer.. don't have logs as I have nothing to log with..
Turner gauge won't hit the original 10.5 11.2 max psi that I was getting with the oem bits..
Question is, why would I be getting 9ish psi and motor sounds like it's working just as hard as before (plus added noise due to dp etc) but feels like I'm pulling a trailer??
I clear the 3106 code while cars on FYi and it just feels .... asleep.
Please if anyone can give me a idea of something I should look for ..
Keep in mind car was as always before the install..
All couplings are tight.. dp and midpipe seal were tightened with a impact soo don't think they're a leak there..
I know I need a tune to wreak the benefit of these parts but car should at least be as good as stock????
Also, semi bad lag

Please help

[JM98]

Are you on the stock tune? If so that's why the car feels slower - especially now that you have a much larger intercooler. I would fix that 02 and throw any OTS tune on the car asap, then do some logs to make sure it's running right.

[ShocknAwe]

Start with MHD stg 1 and move forward. But honestly, I'd make sure everything is installed properly before testing things. O2s are important for trims and afr.

[fast1eddy]

I would start looking for vacuum leaks. When I swapped out my turbos this spring I had the same results. Pulled strong at lower rpms then fell on its face. Found a disconnected vacuum hose under the valve cover. Connected it up and it still ran like shit. Took it in to my mechanic fearing the worst and he found a broken wire to my cooling fan. DME couldn't detect cooling so threw the car into limp mode and cut the power. $120 diagnosis and fix and car is faster than me. What I'm trying to say is sometimes you can guess what the problem is but with the right diagnostic tools a mechanic can narrow it down in minutes.

[elitesales305]

Originally Posted by fast1eddy

I would start looking for vacuum leaks. When I swapped out my turbos this spring I had the same results. Pulled strong at lower rpms then fell on its face. Found a disconnected vacuum hose under the valve cover. Connected it up and it still ran like shit. Took it in to my mechanic fearing the worst and he found a broken wire to my cooling fan. DME couldn't detect cooling so threw the car into limp mode and cut the power. $120 diagnosis and fix and car is faster than me. What I'm trying to say is sometimes you can guess what the problem is but with the right diagnostic tools a mechanic can narrow it down in minutes.

I got a good vaccum . Actually is sitting at 1.6 rather than the 1.4 i had before..
Gotta get the o2 then ill start narrowing it down with the mech..
every now and then (today) i get 10+ psi..
I was looking at the mhd maps on their site.. the psi jump is pretty conservative.
Local tuner is saying a 60 to 80 hp jump with his what seems is a cut and paste tune as he mentioned if i wanted something custom it would b a lot more$
Wants 699$ for the "cut and paste"

[JM98]

Originally Posted by elitesales305

I got a good vaccum . Actually is sitting at 1.6 rather than the 1.4 i had before..
Gotta get the o2 then ill start narrowing it down with the mech..
every now and then (today) i get 10+ psi..
I was looking at the mhd maps on their site.. the psi jump is pretty conservative.
Local tuner is saying a 60 to 80 hp jump with his what seems is a cut and paste tune as he mentioned if i wanted something custom it would b a lot more$
Wants 699$ for the "cut and paste"

Yeah that's insane. Just do MHD and be done with it, you won't regret it.