The Much Awaited #230 (L99) Update. - Page 7 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

rpepka · 08-12-2009, 09:06 PM

Quote:

Originally Posted by Scott@Bjorn3D

Guess that did not really reset it. Battery was only pulled for 20 minutes. Maybe should of been all night. Who knows but they changed the program in the car to know it is running high octane.

Sounds like that they gave it a tune and retained your warrentee.

69Bird · 08-12-2009, 09:10 PM

Quote:

Originally Posted by rpepka

Sounds like that they gave it a tune and retained your warrentee.

That does sound probable. I really hope GM has an aftermarket tune that allows you to maintain factory warranty.

Scott@Bjorn3D · 08-12-2009, 09:10 PM

Quote:

Originally Posted by rpepka

Scott, how did your car get from 7-7.47 seconds to 5.7 seconds 0 to 60? Something does not sound right??

How did it get from losing to a 6 cylinder LT to normal?

It sounds like a very dramatic change and not possible by what you decribed was done??

What did they do exactly to the car that you know of??

Well what I think what is happening is 2 part.

1. Engine getting more broke in.
2. Maybe it is learning the Octane but real slow.

My car started doing 6.2 0-60 at about 3000 miles. At almost 4000 miles it is running high 5's. Now it is running real good. Today driving around town not even half throttle from a stop light with traction off the car would spin the tires.

I hope it stays this way. I also hope they do come out with something for as rich as the cars do run. They said mine was running rich. I could gain even more HP and TRQ if they fixed that issue.

69Bird · 08-12-2009, 09:16 PM

Quote:

Originally Posted by Scott@Bjorn3D

Well what I think what is happening is 2 part.

1. Engine getting more broke in.
2. Maybe it is learning the Octane but real slow.

My car started doing 6.2 0-60 at about 3000 miles. At almost 4000 miles it is running high 5's. Now it is running real good. Today driving around town not even half throttle from a stop light with traction off the car would spin the tires.

I hope it stays this way. I also hope they do come out with something for as rich as the cars do run. They said mine was running rich. I could gain even more HP and TRQ if they fixed that issue.

Scott,
I like what you are saying! but something was "stopping it up" Like a bad drain or something. I believe your computer had an issue but they got it on track now. Still what happens if you have to use low octane gas again? Will it go back to fast or stay slow you know?

third1 · 08-12-2009, 09:43 PM

Hope this issue is taken care of. It's nice to see your running good Scott. Lets hope it dosen't have a relaps

Mr_Draco · 08-12-2009, 10:20 PM

Quote:

Originally Posted by 69Bird

Still what happens if you have to use low octane gas again? Will it go back to fast or stay slow you know?

I would like to know this as well.

Jimmy · 08-12-2009, 10:49 PM

Scott, I am glad you got it figured out. You had me worried so I tested my LS3 just incase it had the same problem. It ran zero to sixty in 4.7 seconds. It was about 72 degrees when I ran it. My car seems to run great. Take care.

camaro1 · 08-12-2009, 10:52 PM

would someone with hp tuners near scott go do a read on his ecm/tcm and post it up so we can compare it to another known L99 file

DaddySS · 08-13-2009, 04:27 AM

Glad you are making progress and thanks for taking the time to update us.

Imfishintx · 08-13-2009, 09:32 AM

Well if the computer learns slow I think this would be a HUGE problem that can cause serious engine damage!!! If the learn is so slow if you put low octane gas in a car that has been running high octane the change to the computer is CRITICAL to prevent damage due to knocking from the lower octane. If this is the case I see some problems on the horizon!

Danno · 08-13-2009, 09:54 AM

Quote:

Originally Posted by Imfishintx

Well if the computer learns slow I think this would be a HUGE problem that can cause serious engine damage!!! If the learn is so slow if you put low octane gas in a car that has been running high octane the change to the computer is CRITICAL to prevent damage due to knocking from the lower octane. If this is the case I see some problems on the horizon!

Scott actually already talked about that on page 1, and it's not a concern in the other direction. To quote:

Quote:

They said if the car runs low octane gas it will right away reduce the timing to keep from knocking. Then they said if you start running high octane it will slow take away the timing retardation and the car will get more HP.

So, design behavior is immediate pulling of timing on low octane, and then gradually re-instating the timing as better gas is used.

JoshJ81 · 08-13-2009, 10:00 AM

Did they just simply put 93 octane in and do a reset of the computer? If so, how did they do the reset? I see alot of speculations but no real answer.

ElAntonius · 08-13-2009, 10:00 AM

Quote:

Originally Posted by irpq11

Ya, you missed a part. We're talking about the time lossed from the 21" wheels as opposed to the stock 20s.

I'll go back under my bridge now.

camaro1 · 08-13-2009, 10:13 AM

here is something to think about,, i just drove vin# 31,6?? L99 with only 5 miles on it and i can tell you it is much faster than my car was when mine was stock(vin 10,789)

turned traction off and this car would light up the tires from a dead stop like no tomorrow, and when getting on it at slow speeds it is much peppier than my car was.

my car would not light the tires up when it was stock

08-12-2009, 09:43 PM	#89
third1 speed freak Drives: 2015i Cadillac Escalade,10 IOM 2ss Join Date: Jun 2009 Location: Neenah Wi Posts: 1,143 View My Garage	Hope this issue is taken care of. It's nice to see your running good Scott. Lets hope it dosen't have a relaps __________________ Current:2015i Cadilac Escalade,2016 Lexus RC350,2011 CVO StreetGlide cammed,tuned & loud. 2010 IMO/IO,custom stripes,GFX,sunrf,solo exhaust,JBA shorties,rotofab,Jannetty tune,Pfadt,JLw6 Audison&Hertz,7/4/09 2GIFKIEJ6A9123779Del 7/10/09 Former Camaros 72 LT1 Z28, 86 z28 [SIGPIC]

08-12-2009, 10:49 PM	#91
Jimmy Drives: 2010 2SS RS Camaro Join Date: Dec 2008 Location: St. Louis, MO Posts: 233	Scott, I am glad you got it figured out. You had me worried so I tested my LS3 just incase it had the same problem. It ran zero to sixty in 4.7 seconds. It was about 72 degrees when I ran it. My car seems to run great. Take care. __________________ IBM 2SS/RS, manual, polished wheel 1100 (original order date): 1-10-09 2000 (dealer received allocation): 5-7-09 3000 (accepted to production): 5-14-09 3300 (scheduled for prod):6-5-09 3400 (broadcast):6-10-09 3800 (produced):6-20-09 2G1FT1EW8A9120472 5000 (at dealer): 7-6-09 6000 (delivered): 7-6-09

08-12-2009, 10:52 PM	#92
camaro1 Drives: 550+RWHP 2010 camaro Join Date: Sep 2007 Location: wisconsin Posts: 1,588	would someone with hp tuners near scott go do a read on his ecm/tcm and post it up so we can compare it to another known L99 file __________________ 415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller

08-13-2009, 10:13 AM	#98
camaro1 Drives: 550+RWHP 2010 camaro Join Date: Sep 2007 Location: wisconsin Posts: 1,588	here is something to think about,, i just drove vin# 31,6?? L99 with only 5 miles on it and i can tell you it is much faster than my car was when mine was stock(vin 10,789) turned traction off and this car would light up the tires from a dead stop like no tomorrow, and when getting on it at slow speeds it is much peppier than my car was. my car would not light the tires up when it was stock __________________ 415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
PDIM Software Update	codeman71	Audio, Video, Bluetooth, Navigation, Radar, Electronics Forum	1188	03-03-2018 10:45 AM
SAE HP/Torque Curves for L99 & LS3	ls2gto	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	40	05-16-2011 07:43 PM
LS3 vs L99?	SGOS252382	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	34	09-18-2010 04:55 PM
Check your Order here	bvonscott	Camaro Price \| Ordering \| Tracking \| Dealers Discussions	665	06-29-2009 02:00 PM
L99 engine specifications	Tran	Wiki	0	10-19-2008 12:40 PM

08-13-2009, 04:27 AM	#93
DaddySS Kept The Faith Drives: 2011 Camaro SS Convertible Join Date: Jan 2007 Location: Bergen County, New Jersey Posts: 418	Glad you are making progress and thanks for taking the time to update us.

08-13-2009, 09:32 AM	#94
Imfishintx Drives: 07 Tahoe LTZ Join Date: Jun 2009 Location: Melissa,Tx Posts: 80	Well if the computer learns slow I think this would be a HUGE problem that can cause serious engine damage!!! If the learn is so slow if you put low octane gas in a car that has been running high octane the change to the computer is CRITICAL to prevent damage due to knocking from the lower octane. If this is the case I see some problems on the horizon!

08-13-2009, 10:00 AM	#96
JoshJ81 Drives: '10 Camaro 2SS/RS Black Join Date: Jul 2009 Location: Wichita Falls, TX Posts: 257	Did they just simply put 93 octane in and do a reset of the computer? If so, how did they do the reset? I see alot of speculations but no real answer.