What is LS1 Edit?

LS1 Edit is a tool used to reprogram the computer (from here forth referred to as the PCM ~ Power Control Module) in your 1997-2002 Corvette. It runs as a software package on your laptop and includes a cable to interface with the PCM. It is not a diagnostic software to monitor what your car is doing.

What software components does LS1 Edit consist of?

LS1 Edit consists of 2 pieces - a programmer and a editor. The programmer (from here forth referred to as LS1 Prog) allows you to Read and Program your PCM. When using LS1Prog your laptop must be connected to the car. The second component is the editor (LS1 Edit) which also runs as an application on your laptop but does not require you to be connected to the car. From LS1 Edit you can make any changes to your "program" that was downloaded from the car before uploading to the car.

Where can I purchase LS1 Edit

LS1 Edit can only be purchased from Carputing LLC . Anyone else advertising it is a fraud.



How much does LS1 Edit cost?

There are two version of LS1 Edit available. One for individuals and one for tuners. The tuner version is "unlimited" to the number of vehicles that it can program and can cost many thousands of dollars. Contact Carputing for more information.

The normal individual version of LS1 Edit is 550.00 and "locks" itself for use to only your car (from the VIN.) For 100.00 each up to 4 other VIN's can be added to it.

What can I change in my PCM with LS1 Edit?

Virtually every parameter available can be altered including fan settings, idle, tire size, gear ratios, injector size, ignition, etc.

For a complete list:

LS1 Edit Users Guide

How is LS1 Edit different than Hypertech's HPP3?

A Hypertech is a "canned" product that uploads a a fixed tune into your car. It does allow basic changes such as for tire size, gears, and fan settings. LS1 Edit allows true custom tuning to maximize the performance of your combination.

How is LS1 Edit different that Autotap

Autotap type products fall under a different catagory than LS1 Edit. They are diagnostics tools designed to monitor what is going on with the car. They do not allow any reprogram of the PCM. LS1 Edit allows reprogramming but does not do any diagnostics.



[Modified by Godspeed, 9:57 PM 8/1/2002]

 

awesome...thanks for stepping up :D :cheers:

may be a little slow going at 1st, but I think we can make this work for everyone here :D :cheers:

 

Like we're gonna believe you read it. :D

Are we shooting for answers based on fact or tribal "knowledge"? :blueangel:

 

Simple place to start. Got this off the ls1 edit mailing list:

How do I disable CAGS?
Set cags enable temperature to 300 degrees F.

How do I optimize my cooling fan settings for the stock 195 degree F thermostat?
Fan 1 on at 209 degrees F, off at 200 degrees F.
Fan 2 on at 219 degrees F, off at 210 degrees F.

How about for a 180 degree F powerstat?
Fan 1 on at 194 degrees F, off at 185 degrees F
Fan 2 on at 204 degrees F, off at 195 defrees F

 

Topless Texan wrote:

Are we shooting for answers based on fact or tribal "knowledge"?

This is a powerful question and I feel it does merit some consideration. Maybe those persons replying with answers need to quote their sources or experiences. Just my $0.02

 

[Modified by Godspeed, 11:31 PM 7/24/2002]

 

Just to make sure I understand...

The goal is to capture information about how to use a tool to manipulate an undocumented system. It is incumbent upon consumers of that information to determine the correctness of that information. It is not incumbent upon the providers of that information to establish it's correctness.

If this is the plan, I guess I am concerned. As soon as we get beyond the trivial items, correctness becomes a major issue.

Let's take the C5 gear scaling example, near and dear to my heart. :blueangel: The typical question goes something like this:

"I just installed a Blue Flame 6000 torque converter and 5.36 gears. For some reason I can't get my A4 to shift properly at WOT."

Responses, often from so called reputable sources, go like this:

"With that converter you just need to raise your rev limiter."
"You need a Trans-Go shift kit."
"Yeah, I've seen that. There's actually a TSB out on the valve body. Dealer can take care of that for ya."

None of these are correct, there's a known, demonstrable defect (or "unimplemented feature" if you prefer) in the software. The typical end user is supposed to figure that out? When it slipped by all those beta testers? (Don'teven get me started on that one. :cuss) I have reverse engineered more systems than I care to think about, have degrees in the natural sciences, and make my living doing technical analysis of this sort so I eat this up. I would bet that the majority of end-users however do not share my enthusiasm for that and did not shell out at a minimum $500 bucks for the opportunity to play geek.

To use another example closer to your own heart, let's consider torque management. Does anybody really understand this? Yes there are some tables that can be fiddled with and results can be observed. Are those tables used in any other contexts? (This is the fundamental question folks unfamiliar with embedded systems fail to ask.) Perhaps where changes might be undesireable? Are there more appropriate tables yet to be discovered?

I truly don't mean to be a wet blanket. I simply think facts are helpful (and in damn short supply) while opinions are not (but seemingly without end) and would like to see us get off on while maybe not the right foot, at least not the wrong foot.

 

good, valid points...while initially the info coming out may be "a little less than solid" it still should prove valuable.....however, as time progresses, I would like to document concrete answers and solutions....

I'm all up for suggestions :cheers:

 

Maybe I should wish for something simple instead, like SPELL CHECK. :smash:

 

I'm all up for trying to make it happen, I just need people that want to help :D :cheers:

 

:confused:

Just how hard is spell check?

 

Okay, now I'm really :confused:

Should I interpret the edited posts to mean that you now feel some kind of FAQ is not in order? I'm sure there are a number of folks who hold a different opinion than I do as to the value of this and how best to go about it... Dialogue is a good thing. :)

 

why does this have to be so hard, and why are you being so critical?

we need people to help :confused:

 

you can say that again. And because of this, people are eager to read a FAQ that may contain someones opinion... than to read nothing at all.

Topless, you know this stuff real well; so I ask... why is this having to be re-engineered
AGAIN?

Too many other tuners have been able to reduce TM and alter shift points due to different gears being installed. Why hasn't the LS1Edit company contracted with those that are already in-the-know to get us the answers quickly; so that the rest of the LS1Edit customers don't have to rely on someones "opinion"?
I really don't need gear scaling. Even though I upgraded to the 3.42, I am having zero problems with the factory programing. All I would like to do it reduce the sissy-soft-shifting of my A4 and lessen TM.

Can anyone at Carputing give me specific A, B, C steps to accomplish these two steps that other tuners have been doing for years; or am I going to have to rely on other peoples "guesses" and figure it out myself?

I think for many right now. a FAQ with some "opinions" s better than nothing at all.

 

I have been asking for spell check since the software change ages ago. Clearly a failed attempt at levity... Point was really that it is a much more well defined and achieveable goal than this FAQ.

Although it's no secret I've never really thought this was a great idea, I'm not being critical as much as I'm trying to (really) understand the goals of this FAQ. You're asking people to help and that requires time and effort on their part. I'm just trying to get a feel for whether or not this is something I might want to contribute my effort to. You have some obligation to define (or let be defined) exactly what it is you are asking people to help with.

I was hoping some others out there might jump in and say a little more about what they'd like to see or not. What I want to see doesn't matter much at all, and I'll willingly withdraw from any FAQ debates. I'd still like to see spell check come back at some point though. :)

 

Well at the risk of sounding "under developed" I'll give my reasons for feeling that the FAQ's thread is a good idea.

I bought my first LS1 engine (which in pieces) this last Tuesday. And there you have it.......my total experience with an engine that is controlled by a PCM!:bb

For beginners (does that word have 2 n's? Wish we had spell check!:p:) like myself as well as C5 owners who decide to mod their new car, there's got to be a lot of people who need a foundation of knowledge from which they proceed in some direction. I think it would make the hobby more enjoyable. Seems like most mods require PCM tuning. To me, and again I'm a novice, there's a huge black hole in modifying the newer engines and it all comes back to the PCM.

So without a place to start such as FAQ's what's a good alternative in your opinion? How does a person learn? I would certainly appreciate your input. :seeya

 

Let me chime in again. I like the idea of a FAQ section, but, I think the answers need to show some form of validity. If there is a source, quote it; if it is from an experience, say so; or if it is someone's opinion, then have them say just that. I have to agree with Topless that a lot of people like to just throw out any answer (? Red Herring?) to a question not knowing if it is right or wrong. I would be willing to contribute to this section with my limited knowledge.

 

sorry I didn't see the humor in the Spell Check thing.....and yes, it is a big deal considering the software that's being used.....but if that's what you'd like to concentrate your time on, please contact BigToe and Troy, etc. :D :cheers:

time and effort, yup just like many do here all the time, guys like kewlbrz, neverenuf, the Moderators, etc.

what I'm hoping for, and no, it doesn't happen overnite, is something similar to what we have now as the C5 FAQ.

Slowly, as people find solutions, they could be submitted and added to the FAQ list.

The reason, I see that not many people are stepping up, is because the experience out there right now is VERY limited....which is why we/I need help from people like you and neverenuf and anyone else with LS1Edit experience that don't mind sharing their time to help the forum ;)

It would be really awesome if here or anywhere else that we could tap, that had viable, concrete solutions to tuning questions using LS1Edit.

I don't want or even mean to turn you off from the idea of helping, it's just that you obvious have a lot to contribute and I believe the forum and it's members would benefit greatly from your experience.....and just to note, Moderators aren't compensated in any way, we volunteer our time ;) :D :cheers:

 

Now, there's a winner.

People here on CF are not that gullable. I see posters asking "source?" all the time.

 

Mean Green,

I'll be glad to assist anyone on the board who has purchased LS1 Edit and have been doing so on the side for some time now. For the reasons Topless has stated, I won't do it on the board. I prefer to work one on one with the person until we get the program right. Since it's just a matter of mailing the PCM files back and forth it usually doesn't take a real long time to get it right.

Programming the PCM for a few things is realatively straight forward. Once you start "getting under the covers" of the PCM into TM, injector manipulation, IAT sensor configuration, to name a few, the depth of systems knowledge on the LS1 becomes much more important.