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Cylinder deactivation

western car

By western car
in Modifications & Accessories

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western car Enthusiast

western car

Posted
Posted

I have a 2014 Sierra Denali with a 6.2. I am wondering if anybody out on the forums can enlighten me about the cylinder deactivation mode. Can this mode be turned off? And if so please share how. I am not interested in fuel savings and I don't like the sound of the drone. I have the gmc Borla catback exhaust , slight drone is detected but would rather not have drone at all. Please advise. Thank you.

 

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newdude Senior Enthusiast

newdude

Posted
Posted

For free, drive around in M5. Range AFM disabler will be the least expensive way involving money. You can have a custom tune done if you wish (obviously at that point you can modify pretty much anything including AFM) from Blackbear Tuning.

Green 1364 Enthusiast

Green 1364

Posted
Posted

Do you have the GM/Borla exhaust through your GM dealer? I'm looking at putting it on mine and everyone that has is says there is no drone at all. The regular Borla does have drone.

western car Enthusiast

western car

Posted
  • Author
Posted

Yes I do have the exhaust through GM. The drone is so very faint, but you can still recognize what the motor is doing by the sound it creates. On a positive note though you will love the sound it makes when you get on it.

PMattras Enthusiast

PMattras

Posted
Posted

I have a WT2 truck and don't have a read out when I am in V4 or V8. Is there a plug in gauge that you can buy to show me when I am in these different modes.

austingta Enthusiast

austingta

Posted
Posted

I have a WT2 truck and don't have a read out when I am in V4 or V8. Is there a plug in gauge that you can buy to show me when I am in these different modes.

I'm really not usually a smartass, but if you can't tell when you are in V4 maybe it's not so bad to have it.

PMattras Enthusiast

PMattras

Posted
Posted

I'm really not usually a smartass, but if you can't tell when you are in V4 maybe it's not so bad to have it.

Why is it put in the upper trim levels if you feel it is not needed? More control (information) in staying in different modes etc. like all gauges are made to do. Maybe something that is not needed but something I want.

SouthernSilveradoGuy85 Senior Enthusiast

SouthernSilveradoGuy85

Posted
Posted

I'm really not usually a smartass, but if you can't tell when you are in V4 maybe it's not so bad to have it.

 

Well with stock Prius like exhaust you can't really tell if it's in V4 or not. I have the 5.3 and couldn't tell it was in V4 mode unless I looked on the dash. As far as I know all K2 engines have AFM. Obviously you haven't driven your truck before the exhaust was done. The only time I heard the engine with the factory exhaust was when I full throttled it and it was still very faint. After I got a Flowmaster Super 44 single in/dual out put in I can of course tell if it's in V4 without looking.

austingta Enthusiast

austingta

Posted
Posted

Why is it put in the upper trim levels if you feel it is not needed? More control (information) in staying in different modes etc. like all gauges are made to do. Maybe something that is not needed but something I want.

It's not a gauge, it's a telltale.

PMattras Enthusiast

PMattras

Posted
Posted

It's not a gauge, it's a telltale.

Whatever? Who cares.

fondupot Senior Enthusiast

fondupot

Posted
Posted

Would it hurt anything if you drive around in m5 in the city?

 

nope. speeds up to 35-40 mph only goes to 5th gear anyway. I tried this for a while, but got annoyed with it. Ended up going with a blackbear tune, and turned off AFM altogether. Much happier without it.

western car Enthusiast

western car

Posted
  • Author
Posted

How do you get in touch and what is all involved with a special tune from black bear and does it void the warranty

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