07-12-2016, 03:36 PM | #1 |
Drives: 2012 2SS/RS Join Date: Apr 2014
Location: Fort Wayne
Posts: 560
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High Flow Cats Causing Check Engine Light
I keep getting a check engine light. I have disconnected the battery a few times and it goes away for a little bit and comes back. I thought the JBA high flow converters are not supposed to through codes?
Is this going to affect how the car runs until I can get them tuned out?
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Flowmaster American Thunder Exhaust
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07-12-2016, 03:40 PM | #2 |
Drives: '17 Corvette Grand Sport M7 Join Date: May 2012
Location: Pennsylvania
Posts: 3,748
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I ran with a CEL on for over a year after I installed my JBA's. I even installed BigDaddies.com extenders, but to no avail. Last weekend, I put my BBK headers on and the light went off. The CEL was a lean code (probably because of the extenders). Now, with my increased flow from the headers, perhaps the ECU is getting the right amount of flow and that is why I'm not getting the CEL anymore. FYI: My car ran fine with the CEL on. There was never any problem.
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MY RIDE: 2017 CORVETTE GRAND SPORT--TRIPLE BLACK, 7 SPEED MANUAL, VARARAM TCR-7 INTAKE, BORLA CATLESS X-PIPE, CARBON FIBER STAGE 2 AERO, MGW SHORT-THROW SHIFTER
**SOLD**2011 TRIPLE BLACK SS CONVERTIBLE--6 SPEED MANUAL, MANY MODS, 455 RWHP/435 RWTQ DAD'S RIDE: 2012 ZL1 #1866--BLACK, 6 SPEED MANUAL, EXPOSED CF HOOD, POLISHED WHEELS, SUNROOF, ROTO-FAB INTAKE "Silly Americans, taking from the rich and giving to the poor only works in fairy tales. Success is earned here!". |
07-12-2016, 03:53 PM | #3 |
Drives: 2010 2SS RS, '14 Silverado Join Date: Dec 2013
Location: Tega Cay!
Posts: 311
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My CEL came on right around 50 miles after I installed JBA's, I put big daddies on and never got CEL again. PM me your address and Ill ship 2 to you for free if you want them. Great condition, like new, 2000ish miles on them. I went long tubes and cam now.
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'10 SS/RS, ADM Perf SC RPM Motorsports tuned, Flowmaster catback, Kooks LT Headers, BTR Stage III CAM, CAI, ported TB, New Age Hotrods Tune, Elite Catch can, big worm graphix markers
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07-13-2016, 07:48 AM | #4 |
Drives: 2010 ABM 1SS Join Date: Nov 2014
Location: South Dakota
Posts: 199
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same here... used the big daddies extension when doing my ARH long tubes and high flow cats... never had a CEL. Ran them for about a year until I did cam tune etc...
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2010 Aqua Blue 1SS
KWC 3pc forged, Seibon hood, ZL front end, MGW, ARH full exhaust w/ Doug Thorley axle back, BTR4, Roto-fab, LSXR 102, NW 102, 3.91s |
07-13-2016, 10:29 AM | #5 | |
Drives: GM Vehicles Join Date: Jun 2010
Location: Michigan
Posts: 9,328
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Quote:
Hello timshifty, We are sorry to hear your Camaro is experiencing a check engine light concern. We understand how upsetting this repeat illumination can be and would like to assist in the best way possible. If you’d like to visit your GM dealership to have your vehicle looked at, please feel free to shoot us a private message with your VIN, mileage, full contact information, and dealership name. Steph B Chevrolet Customer Care |
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07-14-2016, 12:30 AM | #6 |
Drives: Camaro Join Date: May 2016
Location: Guam
Posts: 20
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Which extensions did you guys use?
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07-15-2016, 10:07 AM | #7 |
Drives: 2001 2500HD Join Date: Aug 2014
Location: Topeka, KS
Posts: 213
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I installed SOLO's over the weekend with Big Daddy angled extenders and I've driven it probably 50-100 miles and I haven't gotten a light.
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2001 ECSB 2500HD
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07-16-2016, 05:32 PM | #8 |
Drives: 2014 2SS blue Join Date: Jun 2016
Location: Socal
Posts: 689
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Performance wise, what do you think?
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07-16-2016, 06:19 PM | #9 |
Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009
Location: San Diego
Posts: 1,577
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I guess I'll be finding out soon enough. I recently got me a set of JBA HFC and I will be doing a before and after Dyno test, just for kicks. I also will be doing the same thing with the ARH shorties I will be getting soon.
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07-18-2016, 10:56 PM | #10 | |
Drives: 2011 2SS/RS Victory Red Join Date: Aug 2011
Location: Virginia
Posts: 921
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Quote:
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Updates: BTR Stage 2 VVT Cam Kit w/Smith Brothers Trunnions, Fluidampr, RX catch can, B&M Trans pan mod, Kooks Black Headers, Borla S-tunes, Eibach Multi-Pro-R2 coilovers and Swaybars, BMR Full Bushing kit with Toe and Trailing arms, RB Rotors w/EBC Pads, GForce 1400 Axles (now on order). AVH-X5800BHS in Scosche GM5201AB. |
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07-19-2016, 03:07 PM | #11 |
Drives: '17 Corvette Grand Sport M7 Join Date: May 2012
Location: Pennsylvania
Posts: 3,748
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The stock cats are the most restrictive part of the exhaust. High flow cats are the biggest bang for your buck. Buy 'em...enjoy 'em!
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MY RIDE: 2017 CORVETTE GRAND SPORT--TRIPLE BLACK, 7 SPEED MANUAL, VARARAM TCR-7 INTAKE, BORLA CATLESS X-PIPE, CARBON FIBER STAGE 2 AERO, MGW SHORT-THROW SHIFTER
**SOLD**2011 TRIPLE BLACK SS CONVERTIBLE--6 SPEED MANUAL, MANY MODS, 455 RWHP/435 RWTQ DAD'S RIDE: 2012 ZL1 #1866--BLACK, 6 SPEED MANUAL, EXPOSED CF HOOD, POLISHED WHEELS, SUNROOF, ROTO-FAB INTAKE "Silly Americans, taking from the rich and giving to the poor only works in fairy tales. Success is earned here!". |
07-19-2016, 04:29 PM | #12 |
Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009
Location: San Diego
Posts: 1,577
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07-21-2016, 09:22 AM | #13 |
Drives: 2001 2500HD Join Date: Aug 2014
Location: Topeka, KS
Posts: 213
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Noticeable increase in power, but it's not jaw dropping by any stretch.
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2001 ECSB 2500HD
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07-23-2016, 10:06 PM | #14 |
Drives: 1969 Z28, 1982 Z28, 2014 SS/RS/1LE Join Date: Nov 2013
Location: Michigan
Posts: 886
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All these responses...but nobody asking what he code is. That is the key...what code are you throwing?
I ran ARH Shorty headers with Solo HF Cats for a year and never had a code. I now have Pfadt Tri-Y with HF cats and occasionally get a P0151 code. This is the front O2 sensor taking more than 2 mins to get to temp. This can happen with LT due to the added 6 inches the sensor is from the engine. The rear sensors are tuned out, so no codes there. Your likely getting a code from the rear O2 sensors and to fix that I HIGHLY suggest Big Daddy O2 extenders...angled are even better. You will not throw a code again. |
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