3.5" intake running issues

[b20eg6hatch]

So I built my intake the last week basing it off of a few threads here on the board. Well got the intake on the other night, went for a test drive and the car is falling on its face if you push more than about 60% throttle. It gets better after third gear but you can definitely tell she's slower pretty bad. Now before anyone says anything, Flashpro is definitely the next mod but is anyone else having this problem? I looked around at a few threads and even the Rick Specd intakes are not saying you have to have Flashpro or a reflash to run their intake, any ideas?

[vtecfred]

Did you install your MAF sensor in the correct direction?

Sent from my Galaxy Nexus

[sw0ggd0gg]

The MAF needs to be tuned or eliminated with flashpro. The car runs open loop until 4k then switches to closed loop. The MAF nubers are extremely skewed with a non stock intake of any type. Look at your stock air box and see how the air is directed onto the maf location. You will eventually get a cel for MAF numbers and possibly some 02 issues. Get that off your vehicle until you get some tuning and/or knowledge of how to tune. I would also reccomend a velocity stack at the end of your intake wiht a filter that will fit it.

[torreto]

that happend to me to all it is its to much air and it leans the car out bad i just got a flashpro and it went away i will find out how to make it work with out a flashpro for you give me in till the weekend

[RRFG2DD]

Offcourse you would need a fp, for an intake that big its common sense. Research better next time? I would not run any kind of aftermarket intake without it.

[sexy_rexy]

I would take that intake off now man. The ECU thinks there is much less air entering the engine then there actually is. The ECU can only compensate so much with the O2 sensor in closed loop (part throttle) When you are getting on your car you probably running a 14-15:1 AFR and your going to be saying bye bye to your motor. Not trying to be a d**k or anything. Just looking out for a fellow 8th member

[b20eg6hatch]

Originally Posted by sw0ggd0gg

The MAF needs to be tuned or eliminated with flashpro. The car runs open loop until 4k then switches to closed loop. The MAF nubers are extremely skewed with a non stock intake of any type. Look at your stock air box and see how the air is directed onto the maf location. You will eventually get a cel for MAF numbers and possibly some 02 issues. Get that off your vehicle until you get some tuning and/or knowledge of how to tune. I would also reccomend a velocity stack at the end of your intake wiht a filter that will fit it.

Thank you sir.

Originally Posted by torreto

that happend to me to all it is its to much air and it leans the car out bad i just got a flashpro and it went away i will find out how to make it work with out a flashpro for you give me in till the weekend

I would greatly appreciate that. Let me know.

Originally Posted by vtecfred

Did you install your MAF sensor in the correct direction?

Sent from my Galaxy Nexus

Maf is installed the exact distance from the throttle body, same position, inflow the same direction.

Originally Posted by RRFG2DD

Offcourse you would need a fp, for an intake that big its common sense. Research better next time? I would not run any kind of aftermarket intake without it.

FLMAO. You've stated nothing more than I did. I clearly said I had researched it. Does the rickSpecd state flashpro is needed? Do any of the 3.5" intakes state that? No they don't, thank your your for your .02. That's why I posted the thread.

[sexy_rexy]

Originally Posted by b20eg6hatch

FLMAO. You've stated nothing more than I did. I clearly said I had researched it. Does the rickSpecd state flashpro is needed? Do any of the 3.5" intakes state that? No they don't, thank your your for your .02. That's why I posted the thread.

You may be correct in stating that none of the item description state you need Flashpro to run them but, I don't think you understand how a MAF works. They a calibrated to a certain diameter piping and if you change the diameter of the piping, every reading and calculation it makes is wrong. not to mention open loop (WOT) uses a predetermined fuel table based off the factory MAF piping. Do what you want man and I hope your car makes it until you get your FP

[RRFG2DD]

thats why i said its common sense buddy, dont get angry with me now
i was just trying to help not to bash ur thread, but when i didnt know i pm'd Rick and he said yes you would need fp before intake so i bought fp and now saving for intake.

[jimmak85]

Originally Posted by sexy_rexy

You may be correct in stating that none of the item description state you need Flashpro to run them but, I don't think you understand how a MAF works. They a calibrated to a certain diameter piping and if you change the diameter of the piping, every reading and calculation it makes is wrong. not to mention open loop (WOT) uses a predetermined fuel table based off the factory MAF piping. Do what you want man and I hope your car makes it until you get your FP

rick spec'd says you need flashpro...

[K20Z3allmotor]

i have no idea why you would think you would not need FP, its practically common sense because you changed the inside dia of the pipe from 3 inch to 3.5, the ECU is reading a ton of un metered air. hopefully you didn't damage anything by running it lean like that.

[b20eg6hatch]

Rick Spec'd 3.5" Cold Air Intake Systems - $299 Shipped - Now Available!!

Post 8 (with & without tuning). My fault for not reading it more but this and a few others is what I was basing it on. Oh well, just have to be easy on her for till Flashpro arrives.

[sexy_rexy]

He states further in the thread that you need FP and it doesn't specify on his website either. Its kinda one of those things you have to follow their threads for a while or you wouldn't know. No biggie though man. You have an FP ordered so just take it easy on the car until you get it. Best of luck

[K20Z3allmotor]

I would not drive the car like that at all. Go back to stock. Then put it back on when u get FP

[K20Z3Addict]

+1 Take it off ASAP. Go back to OEM or toss on a model specific "tuned" SRI/CAI meant for a stock engine.