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06-24-2009, 06:34 PM
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#1 |
 Drives: BMW Join Date: May 2009
Location: Texas
Posts: 35
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DEACTIVATING Cylinder Deactivation on L99
Has anyone had a pro shop etc. get in and deactivate the Active Fuel Management on their L99 yet? Wondering how involved that would be and/or if it is doable without screwing anything up on the rest of the electonics (I assume this would just be a tuning tweak of the onboard engine software). Would be great to deactivate AFM and have all 8 cylinders firing away on the L99 at all times as nature intended...
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06-24-2009, 06:37 PM
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#2 |
 
Drives: 6 camaros Join Date: Feb 2009
Location: ma
Posts: 320
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I did my own in like 10 seconds... with efi live
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2010 IOM RS/SS TVS2300, cam, stall, headers
2002 Z28 427 2002 SSLE Convertible 1968 383 Camaro 1968 327 Camaro Convertible 1967 RS 327 1967 Pro-Tour LS3 in progress  |
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06-24-2009, 06:40 PM
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#3 |
 
Drives: SS2 Rally Yellow Lt Grey Leath Join Date: Mar 2009
Location: Cape Coral,FL
Posts: 184
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efi
So how didit affect the shifting of the car,also id like to eliminate the TCM SO it screams outof the hole
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06-24-2009, 06:43 PM
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#4 |
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aka Patrick
Drives: '10 Camaro 2SS '04 Silverado Join Date: Jan 2009
Location: Derby Kansas
Posts: 3,072
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Current Modifications: Your average Bolt-ons & Suspension Upgrades
GForce Engineering: 9" Rear End, Strange Pro Iron Case w/Moser Nodular 3.70:1 Detroit locker, 3.5" Solid Drive Shaft |
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06-24-2009, 07:02 PM
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#5 |
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TBoy
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I would like that explained too.
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06-24-2009, 07:11 PM
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#6 |
 
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Out of order!
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06-24-2009, 07:21 PM
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#7 |
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TBoy
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I also wonder how bad the mileage would become.
I was told the timing between 4 and 8 Cylinder ( the reactivation time ) is minimal |
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06-24-2009, 07:24 PM
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#8 |
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Drives: 6 camaros Join Date: Feb 2009
Location: ma
Posts: 320
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mpg maybe loss of 1-2.. where we drive and are located..
the driving is not affected at all... just doesn't kick down into 4 anymore
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2010 IOM RS/SS TVS2300, cam, stall, headers
2002 Z28 427 2002 SSLE Convertible 1968 383 Camaro 1968 327 Camaro Convertible 1967 RS 327 1967 Pro-Tour LS3 in progress |
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06-24-2009, 09:02 PM
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#9 |
Drives: 1969 Camaro (Hit Head On) Join Date: Apr 2009
Location: Maryland
Posts: 33
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I NEED to know how this is done.
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06-24-2009, 09:06 PM
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#10 |
Drives: 2006 Hummer H2 2010 2SS Camaro Join Date: Jun 2009
Location: Maryville tn.
Posts: 586
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So could you tell any difference in the performance for better or worse? Im assuming it couldnt slow you down any, Also hows she sound now she got a meaner growl?
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06-24-2009, 09:07 PM
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#11 |
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Drives: 6 camaros Join Date: Feb 2009
Location: ma
Posts: 320
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need to tune it out... with a custom programmer.. efi live, HP etc...
performance wise, should be nearly 0 difference..
__________________
2010 IOM RS/SS TVS2300, cam, stall, headers
2002 Z28 427 2002 SSLE Convertible 1968 383 Camaro 1968 327 Camaro Convertible 1967 RS 327 1967 Pro-Tour LS3 in progress |
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06-24-2009, 09:11 PM
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#12 |
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Drives: 2006 Hummer H2 2010 2SS Camaro Join Date: Jun 2009
Location: Maryville tn.
Posts: 586
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When shes running on 8 does she sound good like when your getting on her? Cause figure thats why she purrs and dont roar
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06-24-2009, 09:47 PM
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#13 |
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Drives: 1969 Camaro (Hit Head On) Join Date: Apr 2009
Location: Maryland
Posts: 33
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So the EFI Live Camaro tuner will simply take the deactivating feature off for good?
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06-24-2009, 10:55 PM
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#14 |
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HOOK'EM
Drives: 97 c1500/92 olds Join Date: Oct 2008
Location: Texas
Posts: 5,279
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wow you people need to get out of y'alls old time mind set and get with the times and take advantage of technology
just kidding i know some body was gonna say it lol, and performance wise it will be the exact same nothing is changed by deactivating it, why would you think it would? just curious and mpg wise your only giving up a couple mpgs unless you do a lot of long distant highway driving |
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