It's the intake- get tuned for it or take it off until tune. But I would take it off and get a drop in as drop ins work better on the stock turbo...GL!

 

turn your AC on full blast

 

boost leak would also be vac leak. Do you have a rough idle with some stumble? Do you see consistent vacuum on your boost gauge? I doubt you're able, but is your long term fuel trim adjusting closer to +15% to compensate for a boost leak?

You're the OE BOV or at least have it configured to recirc right?

 

Untuned intake gives me less power like this?
Why AC full blast?
Don't have a boost gauge... Sigh. And my idle is the same as it was before I threw on the intake

Edit:Yes I have the OEM BOV recirculating. Well, I connected the piping back to the BOV at least

 

What size MAF housing does your intake have? If the diameter is increased, you may be running lean. ECU senses knock and pulls timing to save you from blowing your motor.

 

MAF housing is built into the intake. it's same size as OEM. maybe I screwed it in too tightly?

 

The maf housing is probably NOT the same size as the intake if you removed it from the stock intake and put it in an aftermarket intake. The MAF itself, however, may be the same, but that's not the question at hand.

If you put it in a larger intake pipe, you are running leaner with the same tune, period.

 

What kind of intake is it?

 

Bardabe Performance intake. How can i check for boost leaks really easily? I honestly think the leaks are coming from the UICP, the couplings that came with it were way too loose

 

I just checked bardabe's website, and their intake does not look like its the stock MAF housing size, it looks bigger. In which case if it really is bigger, then you need to get your MAF scaled

 

They said that it's the OEM size. It's supposed to work with all OEM parts

 

Go out to your car, take off the filter, take a tape measure and measure the outer diameter of the pipe

 

The intake is 3 inches. Isn't that the same as the diameter? Am I supposed to get a larger MAF housing if I have a 3 inch intake?

 

Nope. Stock maf housing is 2.5 inches. Your MAF needs to be scaled

 

The stock maf housing is around ~2.7" (not 2.5"), but yes, he needs a scale for sure.

 

You wouldn't have a boost leak if the only thing you touched was the pipe BEFORE the turbo.

 

So since I have a 3" intake, I now need to get a new MAF housing? What is scaling? Sorry, I'm kind of a noob... Okay, I'm a total noob.

 

No, you dont need a new housing.

Your tuner needs to scale your MAF

 

There's a guide to doing your own MAF scaling somewhere here, but I'm pretty sure you need to be able to log data. See if anyone (or the company themselves) has made a MAF scale for your intake. Do you have an Access port?

Whatever you end up doing, don't go WOT until you get this sorted out. Don't want to blow up your motor

 

So I just need to get the car tuned.... I'm thinking I'm getting leaks because bardabe didn't send me their I/C piping, the piece that connects the UICP to the intercooler. The other parts didn't fit very well. I'm going to call them about it

No access to an AP. Yeah I won't go into WOT. I gassed it a bit and I heard some backfire.

 

Lol,

I think someone needs to step back and explain to him that:
The MAF stands for "Mass Air Flow" and is a sensor. That is the part that you screwed into your new sensor.

The MAF Housing is where that MAF sensor screws into. That's built into the intake, so you can't simply install an OEM size MAF housing.

However, as others have said, the ECU (computer that controls the car) can be reprogrammed to know that the MAF housing size has changed. This is necessary because due to the size increase of your new intake, the car believes that there is less volume of air entering the engine then there really is. This make the car run dangerously and is probably the cause the performance issues you are feeling.

Drive easy on it and go get a tune ASAP.

 

Where are you from?

 

Chet is correct. If this intake is a 3" you need to be tuned for this intake. It's not like the dozen other common intakes available for the X that do not require tuning.

Kooldino: if someone touches the car, they can always do something wrong Like with just the intake if it has a port that has the vac line that goes to the pcv valve, and they leave the hose off, its' a vac/boost leak, because it's down the pipe from the MAF generally.

There's always something that can go wrong. I'm with you on thinking it's hard to mess up an intake install, but common sense isn't always so common.

FWIW Aaron, if the vendor gave you any impression your car doesn't run right because you didn't buy their IC pipe kit, I would just back away from them for mods. Hit up a well known vendor like MAP, ETS, AMS, Cobb, etc. Any one of those places I can guarantee the person on the phone is well versed with the Evo and you can have a huge amount of confidence in what they recommend to you.

 

I know I hooked everything up properly, and it's all tight I can feel it. I'm just thinking it's because the IC piping coupling doesnt cover the second bead. IT's just not long enough to. But it's on tight in between the two beads so there shouldn't be any problem, right?

Maybe I do just need a tune. Juan said it should be running fine though, and that even with a catback I shouldn't experience a decrease in power.

I'm located in the LA area. Was gonna get tuned by Naji, but he hasn't responded to my email. Don't have enough $$$ for a tune by RRE yet.... LOL

 

A cat-back doesnt affect something as important as the MAF sensor

 

My advice is SEARCH/ask question before u buy..
If u dont want to tune your car sell your intake and get aFe intake or similar that dont need tuning..

 

Id of stock maf housing.

~2.7"

 

I was told it'd be okay to hold off tuning for a bit. I did ask questions actually, asked Mike and Juan. I'm going to get tuned, just don't have the cash for it yet.

 

told wrong

Should I just take my car to a shop like RRE and ask them to look at it?

RRE is as good of people has you're ever meet. You're lucky you live so close.

 

Should I just take my car to a shop like RRE and ask them to look at it?

 

RRE will take great care of you

 

Thats a good idea.