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01-10-2017, 05:14 PM | #76 |
Scooby Newbie
Member#: 450777
Join Date: Jul 2016
Chapter/Region:
MWSOC
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I had some issues with my SF as well. After the install my AF Corrections were up around 10 spiking into the 20s at cruise with my AFR spiking into the 17s. Took it off and everything is back to normal. I sent cobb an email, I anticipate they will just tell me my cars fxxx'd and not their product... Wondering if I should just send it back.
2002 wrx
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02-05-2017, 09:26 PM | #77 | |
Scooby Newbie
Member#: 460652
Join Date: Jan 2017
Chapter/Region:
NESIC
Location: NH
Vehicle:2017 WRX Premium WRB |
Quote:
Edit: Found out shortly after swapping it out that the numbers I was seeing for AF Learning were normal - I should have been monitoring my AFR numbers instead. Last edited by csacharuk; 02-07-2017 at 02:43 PM. Reason: Added additional information |
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02-05-2017, 10:37 PM | #78 |
Scooby Specialist
Member#: 327563
Join Date: Jul 2012
Chapter/Region:
MWSOC
Location: Cincinnati
Vehicle:2018 Civic Type R 2008 N54 335i |
My tuner told me not to waste my money on it. In his words it just never scales out right and when it does he has to fix it 3 months later if you breathe on it.
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08-06-2018, 10:45 AM | #79 | |
Scooby Newbie
Member#: 453963
Join Date: Sep 2016
Location: UpState NY
Vehicle:2017 WRX WR Blue |
Similar problems
Quote:
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08-10-2018, 10:11 PM | #80 |
Scooby Specialist
Member#: 391748
Join Date: May 2014
Chapter/Region:
NESIC
Location: The Shire
Vehicle:2015 WRX CWP (sold) 2019 STi CWP |
The issue is the tune not the intake. Get a tune.
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08-12-2018, 02:19 PM | #81 |
Scooby Newbie
Member#: 482358
Join Date: Feb 2018
Chapter/Region:
RMIC
Location: Sandy, UT
Vehicle:2015 WRX Stage2+ Silver |
Figured I'll post in here with my experience and update it every so often. It seems lots of people have issues with this intake.
So far I'm at around 1500 miles with this intake, a Grimmspeed Turboback/boost controller, TGV/EGR deletes, and FMIC. Protuned at 284whp/300tq on a Mustang Dyno. No issues at all with my fuel trims. Do a 3rd gear pull onto the freeway just about every day. Multiple datalogs look great. When I originally got the intake and used the OTS map with it, the fuel trims were all over the place and I was knocking at WOT consistently. Took it off and waited for the rest of the stuff for the protune. It seems people have issues when they clean/adjust their filter. I'll update when I get to that point but so far it's working great. I think issues pop up with more aggressive tunes/e-tunes. |
08-15-2018, 10:44 PM | #82 |
Scooby Newbie
Member#: 485858
Join Date: May 2018
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So this is "the" post I should be reading.
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08-16-2018, 07:16 PM | #83 | |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
Quote:
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11-10-2018, 10:25 AM | #84 |
Scooby Newbie
Member#: 282209
Join Date: May 2011
Chapter/Region:
NESIC
Location: Alfred, Maine
Vehicle:2015 WRX Crystal White Pearl |
Having the same issues (before) and after the Protune. I'm stripping the COBB intake off here shortly and I will be going back to the stock intake in hopes that things will rectify themselves. Tired of the drive-ability issues!
Really disappointed too, because I thought COBB was a great/reputable source for Subaru enthusiasts. |
11-10-2018, 10:50 AM | #85 |
*** Banned ***
Member#: 492861
Join Date: Oct 2018
Location: Arizona
Vehicle:18 WRX Stg 2 tuned Silver |
Should have spent your money on something else that would work properly and add power. From what I understand they just make noise and cause issues, wouldn't put it on my car if they paid me instead of the other way around.
Also, both tuners I had conferred with alleged that it's not worth it and would cause problems. Now if the pro tuners think that, I can only wish you good luck with your issues and solving them. Play stupid games, win stupid prizes. There a lesson to be learned there somewhere. |
11-10-2018, 10:56 AM | #86 |
Scooby Newbie
Member#: 448287
Join Date: Jun 2016
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I think I'm pulling mine off today too. AF learning hits -25% at idle and -10% cruising.
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11-10-2018, 11:03 AM | #87 | |
Scooby Newbie
Member#: 282209
Join Date: May 2011
Chapter/Region:
NESIC
Location: Alfred, Maine
Vehicle:2015 WRX Crystal White Pearl |
Quote:
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11-10-2018, 11:53 AM | #88 |
*** Banned ***
Member#: 492861
Join Date: Oct 2018
Location: Arizona
Vehicle:18 WRX Stg 2 tuned Silver |
That's why I annoyed my prospective tuner with questions before my tune to the point that he referred me t someone else to tune my car. Lol.
I still went with him in the end. |
11-10-2018, 01:41 PM | #89 |
Scooby Newbie
Member#: 282209
Join Date: May 2011
Chapter/Region:
NESIC
Location: Alfred, Maine
Vehicle:2015 WRX Crystal White Pearl |
A tuner who isn't willing to take the time to answer your questions is an issue. That's the whole reason we use them! Glad that they worked with you though!
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11-10-2018, 02:21 PM | #90 |
Scooby Newbie
Member#: 332408
Join Date: Sep 2012
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A tuner who spends hours answering emails would rather be spending his/her time tuning. At the end of the day, the tuner’s time is worth money. A big name tuner’s time is worth even more and is less likely to answer all your questions. It’s a fine balance.
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11-10-2018, 03:13 PM | #91 |
*** Banned ***
Member#: 492861
Join Date: Oct 2018
Location: Arizona
Vehicle:18 WRX Stg 2 tuned Silver |
Exactly and I had a 1001 and questions, sometimes same question from two different angles to see if I am getting the same answer. It worked out in the end though. And I don't blame him, I'm just stating facts. Time is money.
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11-11-2018, 06:52 PM | #92 |
Scooby Newbie
Member#: 282209
Join Date: May 2011
Chapter/Region:
NESIC
Location: Alfred, Maine
Vehicle:2015 WRX Crystal White Pearl |
Went back to stock intake today, fresh revised ProTune map, and I am golden. All issues are gone!
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03-18-2019, 11:19 AM | #93 |
Scooby Specialist
Member#: 244114
Join Date: Apr 2010
Chapter/Region:
South East
Location: Louisville, KY
Vehicle:2016 WRX premium |
I have similar fuel trim issues. They seem to crop up after the tune has time to stabilize. Around 30-60 days after running. My AF correction drops to around -35 and af learning drops to around -15. (running rich)
My tuner advised that there is a leak somewhere but I have checked every clamp, replaced the MAF extension cable multiple times, tested the MAF and MAP sensors, and smoke tested this car at two different shops with no issues found. I am running the perrin inlet with nozzle going to a grimmspeed stealth box. My tuner advised that 15+ WRXs inlet is not under vacuum like most cars, so a vac leak actually leads to a rich code. The shops are baffled at this saying that does not makes sense. Based on this thread, I am guessing the intake and/or inlet need to come off and stock parts need to go back on. Can anyone confirm the inlet is not under vacuum? Last edited by sublyme; 03-19-2019 at 10:34 AM. |
07-20-2022, 01:35 PM | #94 |
Scooby Newbie
Member#: 518233
Join Date: Aug 2020
Vehicle:2019 WRX |
ah BIG SF. I'm torn between taking it off and leaving it on..Maf scaling seems off -10-15% at light cruise but get closer to 0 with more load. wot afr seems good. but the car isnt entering OL at wot, idk why.
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07-28-2022, 02:49 PM | #95 |
Scooby Newbie
Member#: 518233
Join Date: Aug 2020
Vehicle:2019 WRX |
FK.. after the 1000th time adjusting the filter and finally getting LTFT under control.. drove through some water, like 2 inches deep.. car started bugging out, idle correction jumped to -25%, car idles lean, 16:1 going as lean as 18:1 after I rev it, after I rev it, idle rpms drop below normal car shakes..
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07-28-2022, 03:08 PM | #96 |
Scooby Newbie
Member#: 518122
Join Date: Aug 2020
Vehicle:2019 WRX Limited ISM |
Could be water or moisture in the MAF harness connector. The jumper harness is susceptible to moisture and corrosion. Pull the connector and check for water, blow it out, maybe even dry it if you can.
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07-29-2022, 05:05 PM | #97 |
Scooby Newbie
Member#: 518233
Join Date: Aug 2020
Vehicle:2019 WRX |
0 faith in this extension harness., it all had to come off. First major rain and this happens. Feel scammed tbh.
Last edited by basyager; 07-29-2022 at 07:33 PM. |
07-29-2022, 05:38 PM | #98 |
Scooby Newbie
Member#: 518233
Join Date: Aug 2020
Vehicle:2019 WRX |
yeah I checked there was MAAAAAYBE a tiny bit, I blew it out it didnt work. This is a joke. I powerwash under the hood and oem plugs never have any issues. I thought Cobb made quality products turns out its overpriced junk.
Last edited by basyager; 07-29-2022 at 05:54 PM. |
08-08-2022, 11:26 AM | #99 |
Scooby Newbie
Member#: 357059
Join Date: May 2013
Chapter/Region:
MAIC
Location: Frederick, Maryland
Vehicle:2023 WRX |
I'm pro-tuned with this intake and late last week I got the p0172 CEL. Had a perfect storm of very hot/humid day, fresh tank of gas, and a big thunderstorm soaking everything. My AF Learning/AF Correct were way into the negative, rough idle and hesitation. I cleared the code and engine learning, and it's running better, but AF Learning is still around -17. WOT AF Correction 1 is fine but at idle it's way off. I'll take my intake apart, clean the filter and MAF sensor, check the harness for water, and see if it resolves itself before I take it back to my tuner for maintenance.
Wish I had seen this thread prior to getting Cobb's intake for my WRX. I knew that these intakes were touchy but I figured with a pro-tune I'd be fine long-term. |
08-19-2022, 02:35 PM | #100 |
Scooby Newbie
Member#: 357059
Join Date: May 2013
Chapter/Region:
MAIC
Location: Frederick, Maryland
Vehicle:2023 WRX |
*double post*
Last edited by Apharmd; 08-19-2022 at 02:37 PM. Reason: double post |
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