Fuse Pull: Low Octane Fuel Fix For L99 and LS3. Reset Fuel Map for High Octane Fuel.

[PQ]

Just confirmed that there is no computer flash or update for the dealers to do. We will need to have our cars taken to the dealer OR pull the fuses ourselves anytime we get bad gas or low Octane gas in them.

Unless they changed the entire computer on these cars during production, (No way that happened) it appears that ANY SS Camaro will need to have the ECU reset (by fuse pull, or TechII at dealer) after using low Octane gas.

This probably includes the 2011s as well. Wich would make perfect sense since we have been hearing some of the new guys benefit from the fuse pull after getting 87 Octane fuel.

[hubcap]

Just pulled mine....2700 miles on it. I've never been able to spin the tires.
When I bought the car and it had 94 miles on it. Im sure it had 87 in it.
I will post results tommorow.

[GTAHVIT]

The fuse pull is for both the L99 and the LS3.

Disconnecting the battery does nothing.

[Mikamaro]

I've been driving my LS3 for more then 5000 miles now, and to be honest I've started with high octane fuel from the start, 93 and 91 only but I was curious to see what was the difference with regular 87 because with my 3800(v6) engine from my Oldsmobile there is a big diffence when it uses 93 vs 87, It get to run about 100 miles more on one gas tank.
So I did this test with the LS3 with no advantage what so ever. I've kept doing 340 miles per tank with no diffence in acceleration or distance. I did that in June and since then I've been putting 91 back in it. I always had a feeling that the car didn't read the high octane fuel properly since then. Yesterday I've pull the fuse an hour and a half and that feeling dissapeared as soon as I hit the gas pedal! For my next gas tank I will add 93 and repull the fuse again...I will keep using 93 from now on.
Thanks guys.

[PQ]

Originally Posted by LosXC451

This is only for the L99 (which is automatic). If you have the LS3 (manual) then the fuse pull isnt necessary

Wrong. Yes it is.

Unless you leave the battery unpluged for a couple weeks. lol Or touch the battery cables together for a few minutes.

Originally Posted by zerox

Guys does this fuse pull even need to be done? Im not sure about it. I went with the dealer and put in premium, when i filled it up with him she was running on fumes, damn low fuel light came on every 2 mins. So I know the right gas was in there from the start. I also did Darin's hard break in method for the first 550 miles, never tried to drive the shit outta it yet, but she definately has some pull. I took off TC and pinned it around a corner and she went a little sideways haha. Should I bother with the fuse pull or should my car be set. Any signs of "low performance that I can notice if It needs a fuse pull"

Maybe not necessary for you.

Originally Posted by wylde1

from my understanding, and I could be wrong, the fuse pull is used to make your computer re-learn the air/fuel mix if you've changed something that would effect it. I.e. CAI, Intake, Cam, Supercharger etc.

if you've been using the same octane fuel since the beginning, your computer should have learned it by now and there would be no need to do a fuse pull.

No. If you have used low actene gas, do the fuse pull after starting to use high octane.

Originally Posted by destroyerofu2

if you do that dont you have to reprogram the windows

The battery, yes. At least a year ago you did.

Originally Posted by JHL88

dealer put 87 in mine. did the fuse pull AND batter disconnect after about 2 to 3 gas changes didnt tell a difference i think my camaro learned on its own.

Not necessarily true. You maybe just didn't 'notice' a difference.

[FLYNNZL1]

From what I have see on this thread, the computer is always self ajusting it's self. I did the fuse pull on my LS3, I did not notice anything. I did it after my CAI mod, I saw a diffrence, but it was probubly from the CAI, IMO.

[WheelmanSS]

I have yet to see any proof that the LS3 benefits in any way from the fuse pull. The only people who have been able to support the claims that they have benefited have been L99 drivers.

My car had 900 miles on it when I bought it, as the owner of the dealer was driving it for a short period, so i figured I would give it a try. I pulled at around 5300 miles and saw absolutely no difference at all.

[EagleKeeper]

Originally Posted by PQ

Wrong. Yes it is.

Unless you leave the battery unpluged for a couple weeks. lol Or touch the battery cables together for a few minutes.



Maybe not necessary for you.

No. If you have used low actene gas, do the fuse pull after starting to use high octane.

The battery, yes. At least a year ago you did.

Not necessarily true. You maybe just didn't 'notice' a difference.

Not sure I could take anything a Sooner fan says seriously...

[chef-beavis]

My car sat for three to four weeks and it went stone-dead. It was so flat my remote would not unlock it. Same as disconnecting the battery. 3K miles. I have never run anything but 92-93 in it. I charged the battery and ran it to work this morning. I gave it hell a couple times and can say without question that it blew the tires off farther before traction control intervened than it ever has in the past. It absolutely made a difference. I don't know if GM cheaped out and put in 87 at the plant or what but it did make a difference.

[ramsman34]

I have a 2011 LS3, any word on the fuse pull effect and affectivenesss for me. my car is very sluggish. i can only run 91 octane as i'm in So Cal. It has 1100+ miles on it. Any input greatly appreciated

[cwalms]

Well my car has idled rough since day 1 and I now have 4400 miles on it. I know the dealer put 87 octane in before I picked it up and I am going to try the fuse pull. I pulled the fuses about 1hr ago and will leave them out overnight. I'll post my results tomorrow. I hope this helps and thanks for the information. This forum is great.

[PQ]

Originally Posted by ramsman34

I have a 2011 LS3, any word on the fuse pull effect and affectivenesss for me. my car is very sluggish. i can only run 91 octane as i'm in So Cal. It has 1100+ miles on it. Any input greatly appreciated

Just kinda thinking out loud here, but if I lived in California (well, I wouldn't) but IF I had to, (well, I'd shoot myself) but IF I had to and couldn't off myself, I'd try to run some octane boost. Carefully figure the mix and run it.

Originally Posted by cwalms

Well my car has idled rough since day 1 and I now have 4400 miles on it. I know the dealer put 87 octane in before I picked it up and I am going to try the fuse pull. I pulled the fuses about 1hr ago and will leave them out overnight. I'll post my results tomorrow. I hope this helps and thanks for the information. This forum is great.

Did you ever time it?

[ramsman34]

PQ:

Just kinda thinking out loud here, but if I lived in California (well, I wouldn't) but IF I had to, (well, I'd shoot myself) but IF I had to and couldn't off myself, I'd try to run some octane boost. Carefully figure the mix and run it.

Nick Saban...nuff said about Alabama...JK

I've been thinking about the octane booster but not sure which brand or what is the best way to use it as I never have before.

any thoughts?

BTW, the cost of living and traffic in So Cal sucks but the weather and "scenery" unbeatable

[ramsman34]

Allright - did the fuse pull on my 91 octane fueled, 2011 LS3 and it did................drum roll please...........ABSOLUTELY NOTHING :(

It's mod time. This car is just waaaaaaay too slugish outta first gear and doesn't get sideways easily at all unless I'm mega high reving and dumping the clutch around a turn with stability and traction control off. I'm craving more speed, power, and torque and I only have 1200 miles on it. Dissapointing to say the least.