Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Fuse Pull: Low Octane Fuel Fix For L99 and LS3. Reset Fuel Map for High Octane Fuel.

*radz28* · 08-24-2009, 12:28 PM

As reported on Homepage.

Okay - after seeing a request for a sticky on how this is done, if someone can post up a couple pics' and exactly how/what to do to correct the power issue with L99s and low octane table, then I'll sticky it here. I think it can go over to the DYI Section too, however, I think it'll do more good here for now. Unless Admin'/Mods' say otherwise, I'll leave it here.

So, again, if someone can snap a few pics', so the DYI'er knows exactly what he/she's doing, and do a quick write-up, and maybe short background on why, I'll change this to a sticky and obviously give credit where it's due.

It should be understood that there is always a risk in DYI'ing, and that this site, Administrators, Moderators, and Members hold no responsibility for any conditions that may arise from performing this on your car; it is completely the responsibility of the DYI'er and owner of the car. This is not a guaranteed fix; only things that some members have shared through their own experimentation.

Waiting on some more confirmation from a member who is working with their dealer to verify the good/bad with regard to this proceedure.

UPDATE: While not officially confirmed, '10 and '11 models do not have modified calibrations to correct this issue. It does NOT appear there is a reflash to correct this. Reliable source(s) say that either a TECH II reflash or this procedure are the only ways to correct this issue. It's unknown if this will change in the future, however, if low octane is detected, the only way for the PCM to get back into the high octane table is outlined a sentence ago.

#PIP4728: Higher Than Expected 0-60 MPH (97 KPH) Acceleration Time- (Nov 4, 2009)
How about that

*********************

Some interesting reads:
http://www.camaro5.com/forums/showthread.php?t=38915
http://www.camaro5.com/forums/showthread.php?t=38838
http://www.camaro5.com/forums/showthread.php?t=38872
http://www.camaro5.com/forums/showthread.php?t=39028

Does it really work?... http://www.camaro5.com/forums/showthread.php?t=36837 There's one test...

Make sure the engine and ignition are turned off

Locate Fuse Panel in front of the passenger's side front strut tower and pull the cover

Remove #5 and #20 (15A fuses) (photo of location below)

Let the car sit for at least several hours (overnight is preferable)

Install #5 and #20 (15A) fuses

Install Fuse Panel cover

Restart vehicle and enjoy

Note: Do not unplug the battery. It has no effect.

Name: fuse.jpg
Views: 126385
Size: 374.9 KB

Data collected from: Scott@Bjorn3D, CamaroSpike23, PQ, GMRULZ, tribone

08-24-2009, 12:28 PM	#1
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,201 View My Garage	Fuse Pull: Low Octane Fuel Fix For L99 and LS3. Reset Fuel Map for High Octane Fuel. As reported on Homepage. Okay - after seeing a request for a sticky on how this is done, if someone can post up a couple pics' and exactly how/what to do to correct the power issue with L99s and low octane table, then I'll sticky it here. I think it can go over to the DYI Section too, however, I think it'll do more good here for now. Unless Admin'/Mods' say otherwise, I'll leave it here. So, again, if someone can snap a few pics', so the DYI'er knows exactly what he/she's doing, and do a quick write-up, and maybe short background on why, I'll change this to a sticky and obviously give credit where it's due. It should be understood that there is always a risk in DYI'ing, and that this site, Administrators, Moderators, and Members hold no responsibility for any conditions that may arise from performing this on your car; it is completely the responsibility of the DYI'er and owner of the car. This is not a guaranteed fix; only things that some members have shared through their own experimentation. Waiting on some more confirmation from a member who is working with their dealer to verify the good/bad with regard to this proceedure. UPDATE: While not officially confirmed, '10 and '11 models do not have modified calibrations to correct this issue. It does NOT appear there is a reflash to correct this. Reliable source(s) say that either a TECH II reflash or this procedure are the only ways to correct this issue. It's unknown if this will change in the future, however, if low octane is detected, the only way for the PCM to get back into the high octane table is outlined a sentence ago. #PIP4728: Higher Than Expected 0-60 MPH (97 KPH) Acceleration Time- (Nov 4, 2009) How about that ******************* Some interesting reads: http://www.camaro5.com/forums/showthread.php?t=38915 http://www.camaro5.com/forums/showthread.php?t=38838 http://www.camaro5.com/forums/showthread.php?t=38872 http://www.camaro5.com/forums/showthread.php?t=39028 Does it really work?...** http://www.camaro5.com/forums/showthread.php?t=36837 There's one test... Make sure the engine and ignition are turned off Locate Fuse Panel in front of the passenger's side front strut tower and pull the cover Remove #5 and #20 (15A fuses) (photo of location below) Let the car sit for at least several hours (overnight is preferable) Install #5 and #20 (15A) fuses Install Fuse Panel cover Restart vehicle and enjoy Note: Do not unplug the battery. It has no effect. Data collected from: Scott@Bjorn3D, CamaroSpike23, PQ, GMRULZ, tribone __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs