01-29-2024, 04:08 AM | #1 |
Drives: 2016 Chevrolet Camaro 2SS Join Date: Jan 2024
Location: Inland Empire
Posts: 2
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Active Exhaust problem ?
Hello all, i was wondering why my vehicle is throwing a cel code when i have a active catback borla attack exhaust i took it to the dealer and they couldn’t find the problem it’s throwing a chassis control module but it was replaced and cel still pops up later they told me i needed the whole stock exhaust back on for the cel to go away and wanted to charge me 3900!! just wanted to know what i could check or if there was a way to get rid of the cel without a tune thanks !Attached is dealers diagnostic lol
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01-29-2024, 04:33 AM | #2 |
Drives: 17 camaro ss Join Date: Mar 2018
Location: michigan
Posts: 239
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Nothing is attached. What code is it?
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01-29-2024, 10:25 AM | #3 |
Drives: 2015 Camaro ZL1 Join Date: Oct 2020
Location: Clinton Twp, Michigan
Posts: 249
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Do you have the AFM valves hooked up? If not you would need to license the chassis control module through HPTuners and turn off that function.
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01-29-2024, 06:37 PM | #4 |
Drives: 2016 Chevrolet Camaro 2SS Join Date: Jan 2024
Location: Inland Empire
Posts: 2
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took it to the dealer and tech stated this in comments
CUSTOMER STATES CHECK ENGINE LIGHT ON
SCAN VEHICLE AND FOUND CODE P12FO CYLINDER DEACTIVATION EXAUST FLOW VALVE STUCK OPEN TRY TO RELEARN VALUES AND IT KEEP SAYING IN TRANSITION AND WONT LEAR OR CLOSE VALVE FALLOW DOCUMENT # 3460638 IT TOLD ME TO REPLACE ACTUATOR AGAIN SO I MADE A TAC CASE #9-11725376211 TALK TO TAC AND I WAS ADVICE TO PUT A NEW ACTUATOR AND RELEARN VALUE INSTALL NEW ACTUATOR AND WOULD NOT LEARN NOW IT WOULD SAY OUT OF RANGE. I TALK TO TECH AND THEY HAD ME SEND THEM PICTURE OF EXHAUST AND \N SCREEN DATA TO REVIEW. I SWAPPED ACTUATOR FROM BANK 1 TO BANK 2 WITH ENGINEER AND TRY TO TRY TO LEARN VALUES BOTH ACTUATORS NOW SAY OUT OF RANGE CALL TAC BACK AND TOLD THEM WHAT HAD HAPPEN THEY WENT OVER THE VEHICLE ELECTRICAL COMPONENTS FOR SYSTEM ACTUATORS AND FOUND THE ELECTRICAL COMPONENTS OK. WE SWAT THE ACTUATOR TO A KNOW GOOD VEHICLE AND TRY WORKING THE ACTUATOR AND LEARNING THE VALUES THE ACTUATOR WORK PROPERLY AND LEARN THE VALUES. INSTALL THE ACTUATORS BACK ON VEHICLE AND TRY THE PROCEDURE AND VEHICLE STILL SAID OUT OF RANGE AND WOULD SET CODES P12F2 AND P12FF CYLINDER DEACTIVATION EXHAUST FLOW VALVE ACTUATOR PERFORMANCE BANK 1 AND 2. WE GOT A KNOW GOOD LEAN THE VALUE AND THEY OPEN AND CLOSE NORMAL NEED TO REPLACE EXHAUST SYSTEM AND RE LEARN VALUES ON ACTUATORS CUSTOMER DECLINE WORK AT THIS TIME |
01-30-2024, 01:55 PM | #5 |
Drives: 2015 Camaro ZL1 Join Date: Oct 2020
Location: Clinton Twp, Michigan
Posts: 249
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You have 2 options.
Option 1 - Plug the AFM valves back in to the harness and zip tie them to the chassis somewhere where they are out of the way(this typically works but can still throw a CEL sometimes). Option 2 - License the chassis control module with HP Tuners and deactivate the AFM valves. |
01-30-2024, 03:13 PM | #6 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 1,992
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Christ trying to read that jibberish made my head hurt…
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01-31-2024, 03:34 PM | #7 |
Drives: 2022 2SS 1LE Join Date: Jun 2010
Location: Birmingham Alabama
Posts: 80
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Punctuation is a lost art.
__________________
2022 2SS 1LE - no 1/4 time
2018 1SS 1LE - no 1/4 time 2011 Mustang GT brembo - 12.17@114 bone stock+drag radials 2005 G35 Sedan 6MT - 13.1@104pm fbo+drag radials |
01-31-2024, 06:36 PM | #8 |
Drives: 2017 1SS 6spd Join Date: Jan 2011
Location: Utah
Posts: 2,869
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