How could AFM vehicle operation pass quality control - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

14AGMSS · 01-07-2016, 02:20 PM

I took my Range device out over the past couple of weeks because I was not going to drive the car much and the cold take is toll on the battery.

I drove the car without the Range a couple of days lately and I could not believe what a POS AFM makes the L99. There is so much bucking, brapping, and fart sounds that I was spending more time trying to get the engine out of 4 cylinder mode that anything else. Trying to accelerate when I needed to incurred a delay while it switched from 4 to 8 till I got to speed then quickly went back to blaaaaa, bwahh, arrrr.. Hate it.

How could anyone in GM QC actually sign off on this being acceptable. I can't imagine the conversation of a couple of test drivers.. "Yeah I think we have a winner here. That will do "

jergarr · 01-07-2016, 02:48 PM

Lol I agree. My grandpa is a retired mechanic and first L99 we drove we heard the noise and were convinced something was wrong with it. That was until we drove a few more...

bayarea408 · 01-07-2016, 02:59 PM

Tune it out. They sell things that you can buy to turn it off.

When I did headers and intake during the tune i had them turn it off. Really annoying.

I am going to cam and turbo the car soon and i will upgrade and remove it all together.

AGM 1LE · 01-07-2016, 03:34 PM

That is better than having all the people that buy autos having to pay a gas guzzler tax from a sales standpoint

rontammy0 · 01-07-2016, 04:05 PM

When you get it tuned out you will feel much better......so will your car.

Bo White · 01-07-2016, 04:10 PM

The Dodge setup is about the same. Didnt bother me.

Unreal · 01-07-2016, 04:48 PM

This is engineering, not a QC thing FYI.

Synyster · 01-07-2016, 04:53 PM

It sucks. Horribly obnoxious. I had to return my tune to stock for reasons and drive for 70 miles. I've got a full exhaust and it was just awful. Nothing but burrrs, vibrations, and slow throttle response. Oddly enough, not one CEL during that day despite not even having cats.

pyroguy · 01-07-2016, 06:31 PM

Quote:

Originally Posted by AGM 1LE

That is better than having all the people that buy autos having to pay a gas guzzler tax from a sales standpoint

Amen to this!!

Just be glad it isn't the Cadillac 4-6-8 mode from the 80's!

01-07-2016, 02:20 PM	#1
14AGMSS Drives: 2014 AGM 2SS/L99 Join Date: Jun 2014 Location: Richmond VA Posts: 84	How could AFM vehicle operation pass quality control I took my Range device out over the past couple of weeks because I was not going to drive the car much and the cold take is toll on the battery. I drove the car without the Range a couple of days lately and I could not believe what a POS AFM makes the L99. There is so much bucking, brapping, and fart sounds that I was spending more time trying to get the engine out of 4 cylinder mode that anything else. Trying to accelerate when I needed to incurred a delay while it switched from 4 to 8 till I got to speed then quickly went back to blaaaaa, bwahh, arrrr.. Hate it. How could anyone in GM QC actually sign off on this being acceptable. I can't imagine the conversation of a couple of test drivers.. "Yeah I think we have a winner here. That will do "

01-07-2016, 02:48 PM	#2
jergarr Drives: 11' RJT 2SS/RS L99 Join Date: Jun 2014 Location: Chicago Posts: 298	Lol I agree. My grandpa is a retired mechanic and first L99 we drove we heard the noise and were convinced something was wrong with it. That was until we drove a few more... __________________ GPI VVT3 Cam Circle D 3800 Single Disc Stall 1LE 3.91s Stainless Power Headers w/cats Fluidampr 25% UDP Cold Air Inductions Intake Bo White Ported Throttle Body ADM Trans Cooler Some BMR Goodies

01-07-2016, 04:48 PM	#7
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	This is engineering, not a QC thing FYI. __________________ Nick Corvette Z06 -1200ish rwhp

01-07-2016, 02:59 PM	#3
bayarea408 Drives: T Join Date: Mar 2015 Location: CA Posts: 803	Tune it out. They sell things that you can buy to turn it off. When I did headers and intake during the tune i had them turn it off. Really annoying. I am going to cam and turbo the car soon and i will upgrade and remove it all together.

01-07-2016, 03:34 PM	#4
AGM 1LE Drives: 14 SS/ 1LE Join Date: Jun 2013 Location: parts unknown Posts: 922	That is better than having all the people that buy autos having to pay a gas guzzler tax from a sales standpoint

01-07-2016, 04:05 PM	#5
rontammy0 Account Suspended Drives: 2011 2SS/ RS INFERNO ORANGE L99 Join Date: Dec 2012 Location: Alliston Ontario Canada Posts: 9,057 View My Garage	When you get it tuned out you will feel much better......so will your car.

01-07-2016, 04:10 PM	#6
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,021	The Dodge setup is about the same. Didnt bother me.

01-07-2016, 04:53 PM	#8
Synyster Drives: 2006 F150 Lariat Join Date: May 2010 Location: Florida Posts: 1,665	It sucks. Horribly obnoxious. I had to return my tune to stock for reasons and drive for 70 miles. I've got a full exhaust and it was just awful. Nothing but burrrs, vibrations, and slow throttle response. Oddly enough, not one CEL during that day despite not even having cats.