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

[catmaster1]

Originally Posted by c0rsa180

I have an LS3, im trying this now...

as am i!

[catmaster1]

anybody know if this works for all gm vehicles? IE: 2007 chevy tahoe???
If so PM me please.

[montej23]

here in oklahoma we only have 91 do you think that will prevent or hold back the performance of a 2011 LS3

[spooky0]

Ok I'm pretty tire of pulling the fuses every time the car goes back down d low octane table because of bad gas. I read almost all the threat n it seems that one can by pass the trouble by tuning the car right? If so can anyone recommend a good tune shop in L.A any help would b kool.....thanx

[PQ]

Originally Posted by montej23

here in oklahoma we only have 91 do you think that will prevent or hold back the performance of a 2011 LS3

Should. Just less room for error. Maybe try a little octane boost?

Originally Posted by spooky0

Ok I'm pretty tire of pulling the fuses every time the car goes back down d low octane table because of bad gas. I read almost all the threat n it seems that one can by pass the trouble by tuning the car right? If so can anyone recommend a good tune shop in L.A any help would b kool.....thanx

Ya, big fat fail on GM part. Or more like big fat pita from the tree hugger groups.

Tune it is all you can do. Then they are happy. They don't have to worry about you anymore.

[Milk 1027]

91 reccomended

91 octane is what it needs. Anything more is just on the safe side.

By the way, the fuse pull did nothing for me. I guess that's a good thing.

[MSG']

never pulled the fuses, car is fast, not sure if i need to, had it a year and only have put high octane, makes me wonder if dealer had low octane, and i havent been driving it to its potential for 20000 miles

[PQ]

Originally Posted by Milk 1027

91 reccomended

91 octane is what it needs. Anything more is just on the safe side.

By the way, the fuse pull did nothing for me. I guess that's a good thing.

Yup. It is a good thing.

Did you ever time it?

Originally Posted by MSG'

never pulled the fuses, car is fast, not sure if i need to, had it a year and only have put high octane, makes me wonder if dealer had low octane, and i havent been driving it to its potential for 20000 miles

Time it, then pull the fuses, then time it again.

I had timed mine about 150 times before and so I had a good solid number to judge against.

[Milk 1027]

Originally Posted by PQ

Yup. It is a good thing.

Did you ever time it?

No. I need to find somewhere safe to do it. But mine was picked up from the dealership with 2 miles and my dad filled it up. So I'm sure he used 91.

[MSG']

Originally Posted by PQ

Yup. It is a good thing.

Did you ever time it?
Time it, then pull the fuses, then time it again.

I had timed mine about 150 times before and so I had a good solid number to judge against.

you mean on the track right? my times are mid to high 13s but im a novice so who knows

[Milk 1027]

Originally Posted by MSG'

you mean on the track right? my times are mid to high 13s but im a novice so who knows

0-60 as long as it's not over the speed limit and it's safe.

[hawaiianboy]

Hey everyone, did the fuse pull & it worked for me. The engine is more responsive and noticed the increase in torque and power; although I did not time my car before the fuse pull I've noticed the difference it made. Thanks guys

[alfahadSS]

Thanx for the info

[PQ]

Originally Posted by MSG'

you mean on the track right? my times are mid to high 13s but im a novice so who knows

That may be right maybe not. Depends on conditions and launch. You're on the fence though. Hard to say.

If not on a track, like Milk said, 0-60 mph, in a no traffic safe place is fine. As long as the speed limit says you're good.

There are 3 main places I do mine. Two are 65 mph, and one is 70. The one at 70 I have to launch from the road so I have to stop.

Usually no traffic. If there is someone coming behind me, I'll pull off until there isn't.

Still not a perfect or ideal way to do it, but it can be a good tool becasue you can measure one run against another. Even if your timing methos is not accurate.

Originally Posted by Milk 1027

0-60 as long as it's not over the speed limit and it's safe.