Afm delete and check engine light

Camaro17SS · 12-02-2018, 05:09 PM

Hello,

I have an Camaro 2SS 2017(automatic). I just got MBRP cat back exhaust and i have read online it will throw an check engine light if I install that exhaust. To eliminate that Range V8 afm delete is recommended. Will it void any warranty and will it drain any battery if i keep it plugged in? Thanks

njweatherman · 12-02-2018, 06:51 PM

Sorry, I'm not familiar with that type of exhaust system. However, I do know about the Range

The only thing the Range does is disable the AFM on demand. It will not void your warranty because it does not change the tune or leave any trace when it is unplugged. The new Range version is not supposed to drain the battery. To play it safe, you can buy an OBD2 extension plug that has an on-off-switch. Every time you leave the car, you can hit the off switch.

Mark114 · 12-02-2018, 09:33 PM

It looks like the MBRP cat back exhaust doesn't include AFM valves. If you install it and remove the AFM actuators then yes, your car will set a CEL (with or without Range device). The CEL is caused by the disconnected wire harness and not what mode the engine is running. The AFM actuator can be unbolted from the OEM exhaust. Some A8 owners unbolt the actuator, leave it connected to the wire harness, and carefully attach it under the car to avoid the CEL. There are a few threads about that if you search through the Exhaust subforum.

Some owners don't care for the sound of their non-AFM exhaust when the car is running in V4 mode and choose to buy the Range device to keep the car in V8 mode. There are numerous threads about the Range device in the Camaro6 forum. The newer models don't seem to have CEL problems like the earlier models. Alternatively you can have AFM and the actuator tuned out but that will void your powertrain warranty.

SSport16 · 12-03-2018, 09:23 AM

Range will not void your warranty, it leaves no trace once unplugged...I would buy a cable with a switch and turn off every time you turn off the car, especially if the car will sit for a few days or more.

dmcmahan60 · 12-27-2018, 01:38 PM

Quote:

Originally Posted by SSport16

Range will not void your warranty, it leaves no trace once unplugged...I would buy a cable with a switch and turn off every time you turn off the car, especially if the car will sit for a few days or more.

I just got the Range AFM and found out that when OnStar does my monthly diagnostics check I got Action Suggested- We were unable to successfully complete a diagnostic test. This issue may be caused by an aftermarket device plugged into your vehicle's diagnostic port.

GroundhogSS · 12-28-2018, 12:27 AM

Quote:

Originally Posted by dmcmahan60

I just got the Range AFM and found out that when OnStar does my monthly diagnostics check I got Action Suggested- We were unable to successfully complete a diagnostic test. This issue may be caused by an aftermarket device plugged into your vehicle's diagnostic port.

If you see what day of the month they try to run the diagnostics, you can unplug your Range that day.

craigss50 · 12-28-2018, 09:05 AM

Quote:

Originally Posted by dmcmahan60

I just got the Range AFM and found out that when OnStar does my monthly diagnostics check I got Action Suggested- We were unable to successfully complete a diagnostic test. This issue may be caused by an aftermarket device plugged into your vehicle's diagnostic port.

I have not had this happen to mine. My monthly report does include diagnostic report and my Range unit stays plugged in.

MP3BOOSTED · 12-28-2018, 09:11 AM

So to throw in my 2 cents, i got the MBRP race catback without NPP valves and i got no CEL from it. you'll be fine.

I only got a CEL when i installed headers

18ss376 · 12-28-2018, 10:14 AM

If you have a tuner like HPtuners you can tune it out & revert back to the stock tune if needed. Modifying the stock exhaust voids the warranty anyway.

Deakins · 12-28-2018, 10:20 AM

I would have to say that it depends upon the manner of which you modify the exhaust as to whether or not it voids the warranty.

18ss376 · 12-28-2018, 02:14 PM

Quote:

Originally Posted by Deakins

I would have to say that it depends upon the manner of which you modify the exhaust as to whether or not it voids the warranty.

Any aftermarket exhaust parts voids the warranty, be there done that.

dmcmahan60 · 12-28-2018, 02:45 PM

Quote:

Originally Posted by 18ss376

Any aftermarket exhaust parts voids the warranty, be there done that.

If you do not touch the catalytic converters it does not void the warranty. I could be wrong?

drperry · 12-28-2018, 03:21 PM

Quote:

Originally Posted by dmcmahan60

If you do not touch the catalytic converters it does not void the warranty. I could be wrong?

Correct... Axle back exhaust will not void any warranty other than NPP related parts.

Sent from my SM-G930W8 using Tapatalk

18ss376 · 12-28-2018, 03:41 PM

Quote:

Originally Posted by drperry

Correct... Axle back exhaust will not void any warranty other than NPP related parts.

Sent from my SM-G930W8 using Tapatalk

Okay, I have NPP & AFM valves so not anything I can do to mine.

12-02-2018, 05:09 PM	#1
Camaro17SS Drives: Camaro 2SS red hot Join Date: Dec 2018 Location: New york Posts: 1	Afm delete and check engine light Hello, I have an Camaro 2SS 2017(automatic). I just got MBRP cat back exhaust and i have read online it will throw an check engine light if I install that exhaust. To eliminate that Range V8 afm delete is recommended. Will it void any warranty and will it drain any battery if i keep it plugged in? Thanks

12-03-2018, 09:23 AM	#4
SSport16 Drives: 2016 Garnet Red Camaro 2SS Join Date: Jul 2015 Location: North Carolina Posts: 5,435	Range will not void your warranty, it leaves no trace once unplugged...I would buy a cable with a switch and turn off every time you turn off the car, especially if the car will sit for a few days or more. __________________ 2SS Camaro, Garnet Red, Adrenaline Red, NPP, MRC, A8, 5 Split Spoke Bright Silver Wheels (56W) 1100 Status - 7/24/15 (Ordered) 3800 Status - 10/13/15 (Built) 6000 Status - 12/22/15 (Delivered)

12-28-2018, 09:11 AM	#8
MP3BOOSTED Drives: 2017 Camaro SS 1LE (F1A-94 FBO H/C) Join Date: Jun 2017 Location: San Antonio Texas Posts: 844	So to throw in my 2 cents, i got the MBRP race catback without NPP valves and i got no CEL from it. you'll be fine. I only got a CEL when i installed headers __________________ Performance Mods: F1A-94, DSX Flex Fuel Kit, MSD Spark Plug Wires, KOOK 2" off road headers, MBRP Race catback exhaust, Pray Performance Custom Boost Cam, Rocker Arm Trunion Upgrade Kit, 7.850" Hardened Chromemoly Length Pushrods and Johnson Racing 2110R Lifters, TSP CNC'd Heads, Ported MSD intake manifold, 103mm Katech Throttle body, Forged Pistons/Rods, RPM Meth kit, DSX Aux Fuel system, AEM Failsafe and banks gauge, LT4 HPFP, LT4 injectors, BMR motor mounts, Hurst Short Throw, Manley SS exhaust valves Videos of my car? Check here: https://www.youtube.com/channel/UCNi...Qy1OL4NVGlPogw

12-02-2018, 06:51 PM	#2
njweatherman Drives: 2018 Camaro 2SS, redline edition Join Date: Jun 2013 Location: Hackettstown, NJ Posts: 209	Sorry, I'm not familiar with that type of exhaust system. However, I do know about the Range The only thing the Range does is disable the AFM on demand. It will not void your warranty because it does not change the tune or leave any trace when it is unplugged. The new Range version is not supposed to drain the battery. To play it safe, you can buy an OBD2 extension plug that has an on-off-switch. Every time you leave the car, you can hit the off switch.

12-02-2018, 09:33 PM	#3
Mark114 Drives: 2016 2SS Convertible Join Date: May 2012 Location: St. Louis, MO Posts: 1,759 View My Garage	It looks like the MBRP cat back exhaust doesn't include AFM valves. If you install it and remove the AFM actuators then yes, your car will set a CEL (with or without Range device). The CEL is caused by the disconnected wire harness and not what mode the engine is running. The AFM actuator can be unbolted from the OEM exhaust. Some A8 owners unbolt the actuator, leave it connected to the wire harness, and carefully attach it under the car to avoid the CEL. There are a few threads about that if you search through the Exhaust subforum. Some owners don't care for the sound of their non-AFM exhaust when the car is running in V4 mode and choose to buy the Range device to keep the car in V8 mode. There are numerous threads about the Range device in the Camaro6 forum. The newer models don't seem to have CEL problems like the earlier models. Alternatively you can have AFM and the actuator tuned out but that will void your powertrain warranty.

12-28-2018, 10:14 AM	#9
18ss376 Drives: Camaro Join Date: Sep 2018 Location: USA Posts: 520	If you have a tuner like HPtuners you can tune it out & revert back to the stock tune if needed. Modifying the stock exhaust voids the warranty anyway.

12-28-2018, 10:20 AM	#10
Deakins Drives: 2017 2ss, m6 Join Date: Jan 2017 Location: Iowa Posts: 231	I would have to say that it depends upon the manner of which you modify the exhaust as to whether or not it voids the warranty.

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