Need help with Intake MAF

[Spoolin]

So i got a custom intake done for me with the stock maf sensor.

We started the car and it shuts of right away....

My tech is saying i should change my ecu and tune it to allow more airflow.

[Spoolin]

Anyone?

[Donutz]

It's been 14 mins man, be patient.

First, I'll tell you he is wrong. You don't need to change your ecu. Do you need a tune? Not really. I think the question is why won't your car start? Tell us about this custom intake. Where is the maf located; how is the la mounted; is the gasket new; what is the i.d. of the tube; what kind of air filter did you use; was the filter oiled; etc?

[Spoolin]

hmmm not really good with all this car stuff but.... let met try my best..

hmm

HKS filter
stainless steel tubing...

The MAF was put into the same spot as the stock airbox was....... he just cut a whole in the Stainless steel and mounted it there.

other then that..... not too sure.......

but ya... i got no idea....

[Thrizzl3]

was the filter oiled? try blowing air through the filter..if no air comes through then you have a problem.

[Spoolin]

Air was coming through

[Thrizzl3]

so you say he drilled a hole? how is the MAF secured to the intake?

[Spoolin]

He made a mount for it.... its secured by 2 bolts... like original part.....

[Spoolin]

But we got a check engine light and he checked it saying ....

cant remember exactly ... but i think it was something about too much air flow....

[Thrizzl3]

But we got a check engine light and he checked it saying ....

cant remember exactly ... but i think it was something about too much air flow....

hmm..there's too much air flowing in..probably P2187. When i had that problem it was caused by the intake tubing being too large..when it went back to the old intake the CEL went away.

[MajesticBlueNTO]

hmmm not really good with all this car stuff but.... let met try my best..

hmm

HKS filter
stainless steel tubing...

The MAF was put into the same spot as the stock airbox was....... he just cut a whole in the Stainless steel and mounted it there.

other then that..... not too sure.......

but ya... i got no idea....

do you have an air straightener in the tubing in front of the MAF? no air straightener, no worky ....mazda pulled the Mazdaspeed CAI off the market for some time until the air straightener was available

http://www.jscspeed.com/images/catalog/category5019_thumb_full.jpg

also, what's the diameter on your intake tubing?

[Spoolin]

Ya i dont have that..... and the tubing is 3 inches i believe

[Fobio]

Ya i dont have that..... and the tubing is 3 inches i believe

if you plan to fun a 3" intake with a 3" MAF, you will need to recalibrate your MAF curve for your car to even idle. Can't do that without some sort of tuning device.

[Spoolin]

And is there anywhere in our area where i can get one?????? asap?

[Fobio]

NextMod...they open late...lol...

[Spoolin]

So will i still need a air straightener if im running a 3inch intake?

[Thrizzl3]

wasn't it only the 2010's that need the air straightener?

[Fobio]

wasn't it only the 2010's that need the air straightener?

^disregard...sorry phil.

is your "tech" someone at Ultimate?

[Spoolin]

My tech is RT Motorsports........ does a lot of custom work (manifolds, intakes and other shit)

but this problem was just ****ed up....

hes thinking that its the ecu that needs to be calibrated with the new intake......

but now im so confused..... does the intake need a air straightener as well... even tho its a 3inch.....?

[Thrizzl3]

^disregard...sorry phil.



lol no biggie good thing i don't drive a speed :P

[Fobio]

My tech is RT Motorsports........ does a lot of custom work (manifolds, intakes and other shit)

but this problem was just ****ed up....

hes thinking that its the ecu that needs to be calibrated with the new intake......

but now im so confused..... does the intake need a air straightener as well... even tho its a 3inch.....?

you need a tuning device. end of story. your tech knows nothing about your car...it's not some v-TeCk lawnmower ecu that needs to be removed and reflashed or recalibrated like some 80's ricerocket...this is a 2007/8/9 ricerocket...

Your options:

1. Get an AP...lotsa support.

2. Remove ECU, send to CP-e, expect downtime. This is your "remove ECU and recalibrate" option. No shop in Toronto does this.

3. if it's a true 3" filter to turbo intake, I'll make good use of it....take some pics first tho.

[Spoolin]

im getting a cobb AP tomorow.... so i really hope it will run with no air straightener.....


pics will be up shortly... if the stupid thing runs ofcourse..

[Fobio]

im getting a cobb AP tomorow.... so i really hope it will run with no air straightener.....


pics will be up shortly... if the stupid thing runs ofcourse..

Assuming you're Excel-capable, and have beginner's level of logic and common sense, start here:

AccessTUNER Software Guide (http://www.accessecu.com/support/docs/tuningguide/AccessTUNER_HelpFile_MAZDASPEED.pdf)

The MAF calibration section is particular useful. There's also a worksheet that helps you make changes to the MAF calibrations for a 3" intake. You can then take it to APH to get the rest of the tune sorted out if that's the route you plan to take.

[Tokay444]

Why don't you throw your stock intake back on until you EVERYTHING you need?

[Sean80]

Spend the $200 and get SRI of some sort that has been designed for our cars. Cobb, CPE.... many to choose from

[MajesticBlueNTO]

cp-e has a velocity stack in the filter for their 3.25" and not an actual air straightener like shown....as long as there's something smoothing the air in front of the MAF.

as for the 3" intake, follow what Fobio posted above with regards to AccessTUNER. your MAF g/s values need calibration and you might want to start by increasing the lower part first since your car won't even start and idle.

[Spoolin]

Already got everything ready to go......... going to get tuned on sat... with cobb AP...... will post pics and dyno numbers..... :)

[MajesticBlueNTO]

Already got everything ready to go......... going to get tuned on sat... with cobb AP...... will post pics and dyno numbers..... :)

do you have a cp-e HPFP/CDFP or HPFP internals?

if you don't, looking at your mod list, you will need one if you want to make good power using the Cobb AP. You have improved exhaust flow and now intake flow but nothing to supply the increased fueling demands. The stock CDFP/HPFP is not gonna cut it.

Also, are you still running the stock K04? If so, why even bother putting on a 3" intake when the turbo inlet tapers down below that? The stock MAF diameter is more than enough for the K04.