Fuse Pull: Low Octane Fuel Fix For L99 and LS3. Reset Fuel Map for High Octane Fuel. - Page 56 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Screaminz2002 · 02-26-2010, 01:41 PM

Looked through quite a few pages in this thread but never found a date or production cutoff for this fix. Anyone know what it is?

hamad_311 · 02-26-2010, 03:56 PM

WOW I REAALLLY NOTICED A BIG DIFFERENCE!!!

the car isnt that much faster, BUUTTTT when i recived it from the dealer here in the middle east it was probably running on american low octane gas, when i filled it up with our really cheap in price 95 octane, 1 litre for around 16 cents, the car was bucking between 1000 to 1900 RPM now its PUUUUUUUUUUUUUUUUUUUURE!!!!!

I LOOOOOVE YOU WHOEVER found out, cuz our sh***y dealer doesnt know a thing.

GQ4Life · 02-26-2010, 04:10 PM

what rating system do they use for octane in middle east?

GQ4Life · 02-26-2010, 04:46 PM

Quote:

Originally Posted by Screaminz2002

Looked through quite a few pages in this thread but never found a date or production cutoff for this fix. Anyone know what it is?

someone says may 20th 2009

hamad_311 · 02-26-2010, 05:00 PM

Quote:

Originally Posted by GQ4Life

what rating system do they use for octane in middle east?

i dont get what ya mean, but in my country we have 95 & 91, in kuwait they have 99 octane pump gas

i wish we did

GQ4Life · 02-26-2010, 05:15 PM

Quote:

Originally Posted by hamad_311

i dont get what ya mean, but in my country we have 95 & 91, in kuwait they have 99 octane pump gas

i wish we did

I been to kuwait.. why is it. that everyone that works regular jobs in kuwait is indian?

well in UK, Europe and middle east they use RON to measure octane. Here in the US we use an average of RON and MON called AKI (Anti-Knock Index).

95ron is 85.5mon which equals 90 octane in the US
99ron is 94octane in US

GQ4Life · 02-26-2010, 05:17 PM

Quote:

Originally Posted by hamad_311

WOW I REAALLLY NOTICED A BIG DIFFERENCE!!!

the car isnt that much faster, BUUTTTT when i recived it from the dealer here in the middle east it was probably running on american low octane gas, when i filled it up with our really cheap in price 95 octane, 1 litre for around 16 cents, the car was bucking between 1000 to 1900 RPM now its PUUUUUUUUUUUUUUUUUUUURE!!!!!

I LOOOOOVE YOU WHOEVER found out, cuz our sh***y dealer doesnt know a thing.

Our gas not low octane.. just rated different..
though ur gas is cheap.. we get ripped off buying oil and shipping it here

SonnyakaPig · 02-26-2010, 06:48 PM

Quote:

Originally Posted by PQ

Here are my numbers. We had really good weather conditions for the dyno today. I'm happy with my numbers.

317.8 HP
336.3 HP/with WCF

342.5 TQ
361.4 TQ/with WCF

Great TQ numbers.

Here's the link to my post in the L99 Dyno #'s thread:

http://www.camaro5.com/forums/showth...56#post1526856 Post number 94

GQ4Life · 02-26-2010, 07:14 PM

Quote:

Originally Posted by SonnyakaPig

Here are my numbers. We had really good weather conditions for the dyno today. I'm happy with my numbers.

317.8 HP
336.3 HP/with WCF

342.5 TQ
361.4 TQ/with WCF

Great TQ numbers.

Here's the link to my post in the L99 Dyno #'s thread:

http://www.camaro5.com/forums/showth...56#post1526856 Post number 94

what is WCF?

Roger Ramjet · 02-26-2010, 07:34 PM

Quote:

Originally Posted by PQ

Please explain. What do you mean make both read the same?

The two spark tables, high octane and low octane, show the desired target degrees BTDC that ignition should occur without knock retard. Of course, KR will reduce the timing if detected. What is not visible is the program logic that determines how much KR for how long before switching to the Low Octane table. Also not visible is the logic for how long after KR is NOT present that operation is restored to the High Octane table. It looks like the Low table has 7 to 10 degrees less ignition advance than the high table. That's a significant power reduction.

However, the invisible program logic becomes irrelevant if both tables have exctly the same target spark advance. At that point the computer can shift from High to Low and back again with the resultant power loss only present when knock is actually present. So, by copying the High table values over into the Low table the problem goes away.

By the way, I have looked at the 'Old' factory L99 calibration and the 'New' factory calibration to see what GM did to solve the 'Slow' car problem. The 'Old' cal had a 0 crankshaft pulse count before pulling ignition timing when knock was detected. Meaning that ignition was retarded and power degraded the instant knock was sensed. The 'New' cal has a 4 pulse count delay before pulling timing. So, my guess is that some cars may be running a little lean at some point in the part throttle area or some cars had a too sensitive knock sensor that sent the car into the Low Octane spark table prematurely. My conclusion is for cars stuck in the Low Octane table pulling the fuses will work. But, there may be cars out there that have near constant knock retard working. Continuing KR cars cannot be helped by the fuse pull. All of these conditions can be cured with a tune.

Jay2SS109 · 02-26-2010, 08:35 PM

.

Roger Ramjet · 02-26-2010, 09:54 PM

Quote:

Originally Posted by Jay2SS109

Did the fuse pull last night on my LS3.
...............WOW what a difference.

Now you are ready for a tune.

hamad_311 · 02-27-2010, 04:24 AM

Quote:

Originally Posted by GQ4Life

Our gas not low octane.. just rated different..
though ur gas is cheap.. we get ripped off buying oil and shipping it here

U might be right,, but my car was wierd between 1000 -2000 RPM before doing this, and now it is OK

btw if we ain't exporting gas all over the world, id bet we'd be riding camels to work !

we have no income other than this

once gas is finished

GQ4Life · 02-27-2010, 11:40 AM

Quote:

Originally Posted by hamad_311

U might be right,, but my car was wierd between 1000 -2000 RPM before doing this, and now it is OK

btw if we ain't exporting gas all over the world, id bet we'd be riding camels to work !

we have no income other than this

once gas is finished

yea but some of the people get loaded off it.. billions..
so when oil runs out they still have a enough money to last a couple of life times well if they dont just spend it all before that happens

02-26-2010, 04:10 PM	#773
GQ4Life Drives: 2010 Camaro SS LS3 Join Date: Aug 2009 Location: Fishkill, NY Posts: 5,197 View My Garage	what rating system do they use for octane in middle east? __________________ 2015 Corvette Z06.. Lime Rock Park 1:01; Watkins Glen 2:14; Thompson Speedway 1:21

02-26-2010, 08:35 PM	#781
Jay2SS109 Redemption Drives: . Join Date: Feb 2010 Location: . Posts: 198	. Last edited by Jay2SS109; 06-25-2010 at 12:01 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2010 Camaro PCM Pin-out Description and Wire Colors (LS3 & L99)	raptor	Audio, Video, Bluetooth, Navigation, Radar, Electronics Forum	14	06-02-2020 01:51 PM
What kind of gas are you filling up with in your '10 Camaro?	JewelZ	5th Gen Camaro SS LS LT General Discussions	42	08-02-2009 10:31 AM
Check your Order here	bvonscott	Camaro Price \| Ordering \| Tracking \| Dealers Discussions	665	06-29-2009 02:00 PM

02-26-2010, 01:41 PM	#771
Screaminz2002 Drives: 2018 Zl1 Join Date: Jan 2010 Location: Texas Posts: 215	Looked through quite a few pages in this thread but never found a date or production cutoff for this fix. Anyone know what it is?

02-26-2010, 03:56 PM	#772
hamad_311 Drives: 2010 Victory Red Camaro 2SS/RS Join Date: Feb 2010 Location: Bahrain Posts: 41	WOW I REAALLLY NOTICED A BIG DIFFERENCE!!! the car isnt that much faster, BUUTTTT when i recived it from the dealer here in the middle east it was probably running on american low octane gas, when i filled it up with our really cheap in price 95 octane, 1 litre for around 16 cents, the car was bucking between 1000 to 1900 RPM now its PUUUUUUUUUUUUUUUUUUUURE!!!!! I LOOOOOVE YOU WHOEVER found out, cuz our sh***y dealer doesnt know a thing.