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07-29-2013, 09:52 AM | #1 |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
Help: car runs like crap after intake install
Just installed some eBay intake and now my car barely runs and barely stalls. Stutters when you start to drive. I have BOV installed to.. I reset my ecu and still sounds like crap. Any suggestions?
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07-29-2013, 09:54 AM | #2 |
Scooby Newbie
Member#: 357347
Join Date: May 2013
Chapter/Region:
SCIC
Location: east county san diego
Vehicle:2005 wrx sti aspen white |
Take it off and put your stock one back on that will not work without a tune
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07-29-2013, 09:55 AM | #3 |
Scooby Specialist
Member#: 321409
Join Date: May 2012
Chapter/Region:
SWIC
Location: Arrey, NM
Vehicle:2003 Big Effing Van 7.3L powerstroke diesel |
Go back to stock airbox and ditch the BOV.
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07-29-2013, 09:57 AM | #4 |
Scooby Newbie
Member#: 321571
Join Date: May 2012
Chapter/Region:
TXIC
Location: Cypress, TX
Vehicle:2012 WRX Base Ice Silver |
You need a tune when you upgrade your intake. I'd baby her until you get the stock intake back on there.
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07-29-2013, 10:05 AM | #5 |
Scooby Guru
Member#: 134005
Join Date: Dec 2006
Chapter/Region:
MAIC
Location: Pittsburgh, PA
Vehicle:2004 WRX Premium PSM |
At first, I actually wanted to call "troll" on this one. I don't think that's the case however.
Go back to your stock intake. The only intakes I'd run without a tune would be the Cobb SF or SPT for the 2002. A random eBay ones is bad. Not to mention, who knows the filtering properties. Also, ditch the BOV. The stock one is just fine. I'd highly suggest more reading before spending more money. You'll thank me later for saving money on mods and a new engine if you continue down this path Good luck! |
07-29-2013, 10:19 AM | #6 |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
Not to sound like an idiot but I am, could the map sensor effect it in anyway? I tried to get it on all the way but it just wouldn't sit in the hole so I just screwed it on as far as it would go and didn't seem like there was any gaps I could see....
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07-29-2013, 10:35 AM | #7 |
Scooby Specialist
Member#: 17355
Join Date: Apr 2002
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You are probably talking about the Mass Air Flow (MAF) sensor and it is probably your problem. You can quickly confirm that by disconnecting its wiring from the engine bay wiring harness. If the car runs fine, then you've installed your MAF sensor backwards. MAF sensor installation is counter-intuitive because its wires should be pointing to the front of the car even though its wiring harness connector is in the opposite direction.
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07-29-2013, 10:36 AM | #8 |
Medium Frank
Moderator Member#: 140114
Join Date: Feb 2007
Chapter/Region:
MAIC
Location: Common Sense, VA
Vehicle:2020 Subaru Outback |
So the MAF sensor isn't even installed correctly? That's a problem.
Ebay intake? Also a problem. BOV? Problem. Contrary to others, using an intake on an 02/03 without a tune isn't entirely a problem. Resetting the ECU doesn't help anything, and will now take longer to learn parameters. |
07-29-2013, 10:41 AM | #9 | |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
Quote:
The MAF sensor is pointing forward... Does it make a difference if it's not sitting right? If I disconnect it, won't it not do anything different to how the car runs? |
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07-29-2013, 10:48 AM | #10 |
Scooby Newbie
Member#: 304389
Join Date: Dec 2011
Chapter/Region:
NESIC
Location: Lynn, Ma
Vehicle:2013 WRX Hatch ISM |
I may be wrong but if you disconnect the maf and it runs better it is because the ecu has preset parameters instead of getting interpreted air data from the maf for finer a/f mixtures.
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07-29-2013, 10:59 AM | #11 |
*** Banned ***
Member#: 263954
Join Date: Nov 2010
Location: Houston, TX
Vehicle:2014 EVO X / 05 WRX Wicked White / Blue |
Everyone is giving you great advice, time to start following it!
Remove the Ebay intake, and BOV if you can. Your car will thank you for it. |
07-29-2013, 10:59 AM | #12 |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
I'll try it when I get back home from my oral sergeon appointment and see if it makes a difference.
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07-29-2013, 01:32 PM | #13 |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
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07-29-2013, 01:39 PM | #14 |
Scooby Specialist
Member#: 81995
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Chapter/Region:
BAIC
Location: San Francisco
Vehicle:2022 FORESTER SPORT 02 WRX 247k RIP |
so much fail here. please be nice to your car and don't install ebay intakes. also ditch the bov and re-install the maf sensor correctly. what the hell is wrong with people?
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07-29-2013, 01:40 PM | #15 |
Scooby Specialist
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SCIC
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Vehicle:'13 Mazdaspeed3 |
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07-29-2013, 04:40 PM | #16 |
Scooby Specialist
Member#: 268580
Join Date: Dec 2010
Chapter/Region:
NWIC
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Waiting for the blow-up mod
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07-29-2013, 05:00 PM | #17 |
Scooby Newbie
Member#: 362577
Join Date: Jul 2013
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Subscribed for the neon undercarriage lighting to come.
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07-29-2013, 05:04 PM | #18 |
Scooby Specialist
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Join Date: Jun 2010
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MWSOC
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Sell your car and buy a Honda, you can slap the finest eBay finds on them and still run it like a champ.
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07-29-2013, 05:07 PM | #19 |
Scooby Newbie
Member#: 314747
Join Date: Mar 2012
Location: Guilford, CT
Vehicle:2005 WRX |
ditch the crappy eBay intake and take the bov off too. you need a tune for both of those, unless it's a cobb or spt intake
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07-29-2013, 06:12 PM | #20 |
Scooby Specialist
Member#: 76503
Join Date: Dec 2004
Chapter/Region:
MAIC
Location: VA
Vehicle:2016 Mustang GT |
I bet it has one of these on the side of the fender too.
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07-29-2013, 06:20 PM | #21 |
Scooby Newbie
Member#: 348721
Join Date: Mar 2013
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07-29-2013, 09:41 PM | #22 | |
Scooby Newbie
Member#: 55067
Join Date: Feb 2004
Location: Pittsburgh
Vehicle:2015 Audi S3 Monsoon Gray |
Quote:
Put stock intake and bpv on and call it a day. |
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07-29-2013, 10:14 PM | #23 | |
Scooby Specialist
Member#: 33850
Join Date: Mar 2003
Chapter/Region:
NESIC
Location: Pittsfield, MA
Vehicle:2006 WRX Wagon WRC Blue |
Quote:
"It sounded terrible, then the (engine) noise stopped, and so do the moving (of the car)" |
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07-30-2013, 01:57 AM | #24 |
Scooby Newbie
Member#: 336182
Join Date: Oct 2012
Location: Rochester, NY
Vehicle:2002 Subaru WRX Aqua Pearl Metallic |
You guys can all **** off. I figured the **** out myself and the car runs perfectly fine now. My car and I can do what I want to it. If I want I WILL BLOW UP MY ****ING TURBO. I don't care. I'm ****ing 17 owning my own wrx for a first car that I built from a parts car and all you ****ers probably had some ****ty 120hp 3 cylinder garbage cans.
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07-30-2013, 02:09 AM | #25 |
Scooby Newbie
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Come at me bro!
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