Surging/ hesitation - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

fsugreg · 07-06-2011, 09:49 AM

How can I turn off the AFM?

bash535i · 07-07-2011, 12:17 AM

Quote:

Originally Posted by fsugreg

How can I turn off the AFM?

Is the consensus that this is definitely an AFM issue? My daughter's 2011 L99 (I posted in same thread earlier) is going on 5 months old and about 3,000 miles and there is no sign of it correcting matters on its own. I've always used 93 Octane and have also did the fuse pull just in case.

I don't like to say it, but I hate riding or driving in the car. When I get out of it and into my '11 CTSV, the perceived smoothness of power delivery at cruise is daylight and dark. Technically, I guess that would apply to full throttle conditions too, but there is no good reason that the SS can't pull itself down the highway without stumbling.

If it's an AFM issue that can't be fixed, it's shameful that we have to void the warranty to get a smooth operating machine.

Other than that, I'd have to say that I'm fairly impressed with the build of the car.

cmore · 07-07-2011, 06:24 AM

If u notice it while driving at a constant speed and it is not a drastic effect, I would say it is a "feature" of our L99. U could take it to the dealer and ask them to check it out.

quee.raj · 07-07-2011, 06:40 AM

I would definitely start with the idle air control valve. You may be able to take it apart, and clean it up a little with some carb cleaner.

fsugreg · 07-07-2011, 07:02 AM

I've taken my 2011 2ss auto to three dealers. They all say it's the AMF. I found out that it is the AMF by doing this. Take the car on the road. While driving, place the shifter into manual mode. Doing only this, an "S" appears on the display. While in manual mode push the "+" paddle on the steering wheel. You'll notice that all the hesitation, and surging goes away. I've done this at many speeds, and while using cruise control on the highway and the surging is gone. What I don't like is, we should have been told about this prior to buying the car, and there should be an option to disengage it. My understanding is that the AMF only give you one more mile per gallon. Not worth it.

fsugreg · 07-07-2011, 07:04 AM

Quote:

Originally Posted by Rich1

I also had my AFM turned off. The car runs and sounds so much better....

How did you turn of AMF?

thesaint · 07-08-2011, 04:26 PM

With the full understanding that a "tune" will drastically improve the car and is certain death for the power train warranty, has someone been able to just turn off the AFM as to not trip the ecu "counter". There has to be a way to get this "feature" to not dominate my car.

jtzako · 07-14-2011, 03:09 PM

Mine has been doing this more lately. Im going to go check to make sure my MAF is clean (can clean with electrical contact cleaner) and check the filter also.

Emick928 · 05-15-2013, 12:46 PM

BUMP!!! Mine doing it as well. Will be interested to see what comes of this.

Sorry for the NOOB question, but what is the AFM?

cmore · 05-15-2013, 12:54 PM

Its the system that turns off 4 cylinders if the controllers senses 8 cylinders are not needed and then back on when needed. Only on V8s with auto transmissions.

OmniCamaro · 05-15-2013, 02:37 PM

I haven't researched this thoroughly but here's the link to the thread, you decide: http://www.camaro5.com/forums/showth...&highlight=afm

BUMBLDEE · 10-29-2014, 04:22 PM

I have a 2010 camaro 2ss I've had this problem for a while the answer for me believe it or not engine mounts hope this is helpful

R1peccavi · 08-25-2017, 09:34 PM

You can not just simply turn it off. It's is much more complicated than you think the AFM also controls the way that your oil is routed so you can't necessarily turn it off the only way to do it would be to get an AFM delete and go with the VVT 1 2 3 or 4 camshaft from Texas Speed and Performance you can also go to your local Dyno tune and have them reprogram your whole computer but again you're going to lose your warranty on this if you want this problem to be fixed you have to go aftermarket there is absolutely no other way to go about this. This is the first generation of the vfm and they couldn't get it right. I've done a lot of modifications to my 2010 SSRS with the L99 I did the whole AFM delete I did the VVT for camshaft headers and a lot other upgrades and my car still gets better gas mileage believe it or not then it did when it ran with the vfm dropping it down to 4 cylinders

07-07-2011, 06:40 AM	#46
quee.raj Drives: 2011 Join Date: Jul 2011 Location: uk Posts: 5	I would definitely start with the idle air control valve. You may be able to take it apart, and clean it up a little with some carb cleaner. __________________ seo forum free mobile wallpapers

07-14-2011, 03:09 PM	#50
jtzako Drives: 2010 IBM Camaro SS Join Date: Jun 2007 Location: DFW, Tx Posts: 1,157	Mine has been doing this more lately. Im going to go check to make sure my MAF is clean (can clean with electrical contact cleaner) and check the filter also. __________________ 2010 Camaro SS Imperial Blue \| CAI Inc, CAI \| Solo Hi Flow Cats \| X-Pipe \| Backup Camera \| PDIM

05-15-2013, 02:37 PM	#53
OmniCamaro US Veteran Drives: 2011 Silver Ice Metallic 2SS/RS A6 Join Date: Jan 2011 Location: Bossier City, La Posts: 1,407	I haven't researched this thoroughly but here's the link to the thread, you decide: http://www.camaro5.com/forums/showth...&highlight=afm __________________ *Dear Lord, give me the strength to carry on despite my Camaro addiction!* JRE iTSX tune, full cat-less Dynatech exhaust, CAI intake, Stillen Slotted/Drilled Rotors, RB braided brake lines, BMR lowering springs, (reserved for definite future MODS) Last edited by OmniCamaro; 06-05-2013 at 09:37 PM. Reason: no reason ;)

10-29-2014, 04:22 PM	#54
BUMBLDEE Drives: 2ss/rs/6sp/man/rally yellow Join Date: Aug 2010 Location: Brooklyn New york Posts: 1	hesitation while accelerating I have a 2010 camaro 2ss I've had this problem for a while the answer for me believe it or not engine mounts hope this is helpful

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07-06-2011, 09:49 AM	#43
fsugreg Drives: Red jewel tint Join Date: Aug 2010 Location: Orlando Posts: 9	How can I turn off the AFM?

07-07-2011, 06:24 AM	#45
cmore Drives: 2011 Victory Red Auto 2SS Join Date: Aug 2010 Location: West Tn Posts: 628	If u notice it while driving at a constant speed and it is not a drastic effect, I would say it is a "feature" of our L99. U could take it to the dealer and ask them to check it out.

07-07-2011, 07:02 AM	#47
fsugreg Drives: Red jewel tint Join Date: Aug 2010 Location: Orlando Posts: 9	I've taken my 2011 2ss auto to three dealers. They all say it's the AMF. I found out that it is the AMF by doing this. Take the car on the road. While driving, place the shifter into manual mode. Doing only this, an "S" appears on the display. While in manual mode push the "+" paddle on the steering wheel. You'll notice that all the hesitation, and surging goes away. I've done this at many speeds, and while using cruise control on the highway and the surging is gone. What I don't like is, we should have been told about this prior to buying the car, and there should be an option to disengage it. My understanding is that the AMF only give you one more mile per gallon. Not worth it.

07-08-2011, 04:26 PM	#49
thesaint Drives: 2011 camaro ss/rs Join Date: May 2011 Location: south florida Posts: 57	With the full understanding that a "tune" will drastically improve the car and is certain death for the power train warranty, has someone been able to just turn off the AFM as to not trip the ecu "counter". There has to be a way to get this "feature" to not dominate my car.

05-15-2013, 12:46 PM	#51
Emick928 Drives: 2010 SS Metallic Grey Join Date: May 2013 Location: Bakersfield Posts: 1	BUMP!!! Mine doing it as well. Will be interested to see what comes of this. Sorry for the NOOB question, but what is the AFM?

05-15-2013, 12:54 PM	#52
cmore Drives: 2011 Victory Red Auto 2SS Join Date: Aug 2010 Location: West Tn Posts: 628	Its the system that turns off 4 cylinders if the controllers senses 8 cylinders are not needed and then back on when needed. Only on V8s with auto transmissions.

08-25-2017, 09:34 PM	#55
R1peccavi Drives: 2010 camaro ss Join Date: Aug 2017 Location: Texas Posts: 2	You can not just simply turn it off. It's is much more complicated than you think the AFM also controls the way that your oil is routed so you can't necessarily turn it off the only way to do it would be to get an AFM delete and go with the VVT 1 2 3 or 4 camshaft from Texas Speed and Performance you can also go to your local Dyno tune and have them reprogram your whole computer but again you're going to lose your warranty on this if you want this problem to be fixed you have to go aftermarket there is absolutely no other way to go about this. This is the first generation of the vfm and they couldn't get it right. I've done a lot of modifications to my 2010 SSRS with the L99 I did the whole AFM delete I did the VVT for camshaft headers and a lot other upgrades and my car still gets better gas mileage believe it or not then it did when it ran with the vfm dropping it down to 4 cylinders