AFM startup test
Thread Starter
Melting Slicks
Joined: Apr 2009
Posts: 2,431
Likes: 77
From: Lake Charles Louisiana
Instructor
Joined: Jul 2010
Posts: 127
Likes: 10
I have a Flowmaster axle back kit, not installed yet, it comes with an AFM hardware kit. Looks like two springs and attach hardware to mount the valves on brackets on top of the pre muffler pipes. They are not in the pipes. Looks like they will keep constant spring pressure on the valves. Saying it wont throw a code. Anyone using this system. I post my results in a couple of weeks.
Sr.Random input generator
Joined: Jan 2008
Posts: 7,801
Likes: 2,230
From: Sammamish, WA
I have a Flowmaster axle back kit, not installed yet, it comes with an AFM hardware kit. Looks like two springs and attach hardware to mount the valves on brackets on top of the pre muffler pipes. They are not in the pipes. Looks like they will keep constant spring pressure on the valves. Saying it wont throw a code. Anyone using this system. I post my results in a couple of weeks.
Last edited by X25; Oct 5, 2016 at 10:57 PM.
Burning Brakes
Joined: Sep 2013
Posts: 828
Likes: 40
From: Mountaintop PA
I have the borla atak exhaust. When I installed the system it was throwing a cel. I called borla and they sent me a new set of pipes "before the mufflers ". The code went away upon installing the new pipes. I guess the travel of the exhaust valve was not in the oem spec? So if i just disconnected the afm motors from the pipes but kept them wired, the cel would have disappeared. correct?
Racer
Joined: Jan 2015
Posts: 388
Likes: 41
C7 of Year Finalist (performance mods) 2019
I'm still looking for a way to completed remove the AFM actuators since my car is tuned not to go into 4 cylinder mode, even when in ECO (2015 z51 M7).
I agree that some type of plug in resistor could be made to trick the system into thinking the AFM actuators are intact. I'm assuming that the actuators provide a feedback to the ECM indicating they are there. If a small resistor could be made to copy the actuator's signature, then they could be completely removed without tripping the CEL ... or am I way off in lala land here?
I agree that some type of plug in resistor could be made to trick the system into thinking the AFM actuators are intact. I'm assuming that the actuators provide a feedback to the ECM indicating they are there. If a small resistor could be made to copy the actuator's signature, then they could be completely removed without tripping the CEL ... or am I way off in lala land here?
