02-21-2017, 11:31 AM | #1 |
SamMoranAutos
Drives: '16 RS A8 Custom Exhaust CAI Join Date: Nov 2016
Location: San Antonio, Texas
Posts: 72
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Check Engine Light
Hey all,
So this past weekend I did an entire exhaust over hall with brand new 2.5" pipes to an x-pipe to a muffler delete. They're bigger than the 2.25" pipes that come factory. I had the NPP exhaust a while back but did a muffler delete on that a long time ago. I unplugged the sensors for the NPP exhaust for the first time ever (because they're non existent now) and it caused the CEL. Anyone know of a tune or anything to get rid of that light? |
02-21-2017, 11:35 AM | #2 |
Drives: SS-6-SPD Join Date: Jan 2017
Location: New Jersey
Posts: 1,380
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do you have the code ? what code is it throwing?
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02-21-2017, 12:21 PM | #3 |
SamMoranAutos
Drives: '16 RS A8 Custom Exhaust CAI Join Date: Nov 2016
Location: San Antonio, Texas
Posts: 72
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02-21-2017, 12:36 PM | #4 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,298
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02-21-2017, 12:46 PM | #5 |
SamMoranAutos
Drives: '16 RS A8 Custom Exhaust CAI Join Date: Nov 2016
Location: San Antonio, Texas
Posts: 72
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02-21-2017, 01:19 PM | #6 |
Drives: SS-6-SPD Join Date: Jan 2017
Location: New Jersey
Posts: 1,380
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once you have the code you can see what's wrong..
do you have A8 or M6? |
02-21-2017, 02:02 PM | #7 |
SamMoranAutos
Drives: '16 RS A8 Custom Exhaust CAI Join Date: Nov 2016
Location: San Antonio, Texas
Posts: 72
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I have the A8. I'm thinking its those sensors, or they didn't weld correctly and theres a leak somewhere. I'll get the code checked out today after work though and see whats up. They cleared the code yesterday at the exhaust shop but it came back after i turned the car off and then back on. I just didn't ask them what the code was.
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02-21-2017, 02:19 PM | #8 |
Drives: SS-6-SPD Join Date: Jan 2017
Location: New Jersey
Posts: 1,380
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yeah the A8 are tricky because of the AFM sensors ..
check for leaks also .. i heard when you have a leak it will cause a CEL( but normally around the cat only ) .. |
02-21-2017, 02:33 PM | #9 |
Drives: 1987 Z28, 385cid, '16 Camaro 1SS Join Date: Feb 2016
Location: Maryland
Posts: 523
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The factory diameter exhaust is actually 2.75" not 2.25"
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02/23/16: 1100, 03/16/16: 2500 # TGHR6N
03/16/16: 2500, 03/18/16: 3000 TPW : 4/11/16 04/8/16: built & VIN 04/11/16 - 04/28/26 : 4B00 Bayed QC hold, 04/29/16 : 4200 Rail yard '16 1SS 6M, black with jet black interior, split spoke gray machined faced wheels, and black front/rear bowtie emblems. |
02-21-2017, 02:42 PM | #10 |
SamMoranAutos
Drives: '16 RS A8 Custom Exhaust CAI Join Date: Nov 2016
Location: San Antonio, Texas
Posts: 72
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02-21-2017, 11:23 PM | #11 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,288
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You can't just unplug the AFM sensors. That is why you have a check engine light. Why would you think it was OK to just unplug them?
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02-22-2017, 09:23 AM | #12 |
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He mentioned NPP sensors but wondering if he actually unplugged the AFM connections like you mentioned. Yea definitely can't do that without a CEL.
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Current: '17 2SS Hyper Blue, A8, MRC, NPP
Past: '99 SS Camaro A4, '73 Camaro 383 A3 "Voices in your head are not considered insider information." 3800 Status - 6/16/16 (Built!) 6000 status - 6/29/16 (Delivered!) |
02-22-2017, 09:31 AM | #13 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,298
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02-22-2017, 09:45 AM | #14 |
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Might have meant the actual connections for the NPP valves. Think the AFM valves work the same way though.
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Current: '17 2SS Hyper Blue, A8, MRC, NPP
Past: '99 SS Camaro A4, '73 Camaro 383 A3 "Voices in your head are not considered insider information." 3800 Status - 6/16/16 (Built!) 6000 status - 6/29/16 (Delivered!) |
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Tags |
2016 camaro, cel, check engine light, exhaust, tune |
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