LH2.4 ECU/ICU Chipping DISCUSSION

[Lord_Athlon]

I think i know of the one frost is talking about, but i forget the name. I was looking into it for the red wagon before its demise.

[frostburner]

yup sure do, dont care about proving anything to anyone on this board except 1 tbricker/good friend who is also using the system, but at least this crap can tune lh .. ive played that game before, you know that right?

[thelostartof]

[.

[stylngle2003]

out with it already...pretty crappy to keep something secret, imo

i mean christ, its not like your business rides on this or anything....

you'd still get props for figuring it out...what are you waiting for?

[BDKR]

Originally Posted by frostburner

yup sure do, dont care about proving anything to anyone on this board ...

If that's the case, then please try keeping the noise to a minimum. That failing,...



... this cap's for you bud until I see some steel to back up that drag.

[frostburner]

i never said i was going all volvo, im just saying it can be done and lh can be taken complete control over , and yea it is about the dodge. volvo is just the dd , and i think this thread is hilarious actually. i love secrets, that gives you the edge, every racer knows that. why do you think race teams and everyone keep things a secret, to get a one up on the competition, same thing. but i guess all those race teams are bs lol

[frostburner]

Originally Posted by BDKR

If that's the case, then please try keeping the noise to a minimum. That failing,...



... this cap's for you bud until I see some steel to back up that drag.

dragy waggy

[stylngle2003]

we aren't racing against each other man...we are all working to further the common good....tuning volvos is why we're all here in the first place. it's not like this is volvo racing league or anything, where you would have the right to **** talk and all that. naw, man. this is a "community of enthusiasts taking part in revolutionizing Volvo performance..."

[InferiorWang]

^^^
exactly. this is a community not a competition.



the competition is against everyone else. ;)

[thelostartof]

.

[Three Fat Tigers]

I smell smoke, is someone playing with matches in here?

Whats with all the 秘密?

[ovlov760]

Originally Posted by Three Fat Tigers

Whats with all the 秘密?

It's a secret... shhhhhhh

Originally Posted by InferiorWang

^^^
exactly. this is a community not a competition.



the competition is against everyone else. ;)

I second that.

I also want to tell you guys one more thing about LH:

We all know that the LH2.4 adapts and what not.
Many of you may also know that there are different versions of LH2.4 like 2.4.0, 2.4.1, 2.4.2 and 2.4.4. My LH is 2.4.6, but I have a 945 Classic '98 so therefore I have the latest.

There are differences in the hardware between the box numbers and software numbers as you may or may not know. But they are only minor and does not really affect the tuning and adaptability. The thing that really changes though, is the software layout.
The different software numbers of the LH is higher the newer the car is, and refer to updated maps + an upgraded basic layout. That is why a chip for a 563 will not work with a 967 (Kenny, if you get the chance to look at different software revisions you will be a little confused when you see the different layouts. It´s fun though.).

The LH2.4 chip I sell, even if it is for a 2.4.1 or 2.4.6, will have the newest basic layout of the '98, and also all the benefits and bugfixes that it might have, along with the altered/extended maps. The software on all "tuned" chips are 2.4.6 or maybe even newer. In my opinion, the greatest bugfix they did were the fix for the acceleration enrichment (bogging when full throttle was used on low rpm and high gear) and the dip in idle when the e-fan got turned on a hot summers day.

I also want you to know that all 148 EZK´s are the same (software layout "1.0").
The only EZK´s that have a newer layout is the 207/219 that came in the 940T/LPT 95-96 and the 146/152 that came in the latest 740GL and GLT(16V).
Even if the chippable EZK´s may have an older date, the software layout is newer.
After '96 they went back to the "old" 148 EZK again because it was proven to work very good.

The main reason to use the chippable EZK boxes (on some of the late 90´s 740 and 95-96 940T) were because they wanted to try to make the emissions and driveability better, so you might concider them as "test" EZK´s.
I guess they wanted people to use them daily, and if there was something that could be improved they would replace or re-flash the EZK-chip (cheaper than a new ECU) and by that learn what problems that may arise, and what to do in future cars to prevent it.

The piggyback systems mentioned are going to work better on some ECU numbers because of the tolerance in the software. Don´t use a piggyback on a 563 or 984 though, they will adjust a lot before they reach the end of adaptability.
If power to the ECU would be lost and it decides to revert to basic adjustment settings, the piggyback would really skew it all very much the first time you drive it if the piggyback adjustments were made on a well adapted ECU.
If I remember correctly, the 937 is the most "stupid" of them all (in stock form that is).

I am not an expert in piggyback ECU´s, but...
If a piggyback were to be used on LH, don´t forget to "reset" the ECU first so that the LH ECU thinks it has to adapt to the conditions given by the piggyback ECU. Don´t try to tune the piggyback on a LH ECU that has been used for a while. The longer the LH is used, the longer it takes for it to adapt (I guess it thinks that it is a temporary thing, and does not take as big steps as it would when it´s reset.). LH will then adjust slowly over time, and will eventually end up at a near "stock" setting.

[linuxman51]

Originally Posted by stylngle2003

yea but kenny, you just wrote a stock performance chip for a stock car...that was your particular car's particular "standard hardware load out" to use chris's thoughts. i can't prove this, but i bet if you threw your map you just made for the stock 940 (which probably has more or less fuel down low to give it the kick you described) on a modded 940 with a larger turbo, or a better cam or intercooler/exhuast whatever, that it probably wouldn't be optimally performing on the latter vehicle, and could in fact be potentially dangerous to the modded engine.

sometimes you say the stupidest ****ing things. one should think about the ramifications of what I said and not so much the direct and immediate application. It worked for me, which means I can write one for someone else with different equipment. Think about the meaning of things before throwing out some ignorant ass statement.

"but billy, your wheels might not work so well on my 740 because its not blue"

[frostburner]

Originally Posted by thelostartof

so you have not done it to the volvo? so how can you even begin to say it can be done if you have not even done it.

on paper eric should not of had issues with the smt6 but LH out smarted him on it. good piggyback/standalone system and it could not hold a setting for LH would read learn and take control back

sounds like you just took a seat next to acb on the benchracers list


guess you missed the link on the main page that says 'community' we are all commys here and all share the same info otherwise there'd be 4 fast cars and everyone else would be driving riced out slow cars

yup im the biggest bench racer, ive never owned a fast car lh outsmarted him, alot of systems can be used on lh that people havent tried, and lets just say i know it works because ive made quite a few contacts over the past year whose main job is picking apart ecus and reprogramming them, lh being one of them and they did it, thats how i know. they showed me all the paper work , schematics, everything and how it all functions. it can be done, eric just did it wrong. but ill take my seat next to acb since im a bench racer all of the sudden since i wont tell people whats under my belt. mainly reason i dont is ive been f V cked by too many board members here and other boards so im only willing to help close friends i trust because others are a waste of time and im done trying to help others when in the end there is nothing to show for it.

[linuxman51]

Originally Posted by frpe82

I second that.

I also want to tell you guys one more thing about LH:

We all know that the LH2.4 adapts and what not.
Many of you may also know that there are different versions of LH2.4 like 2.4.0, 2.4.1, 2.4.2 and 2.4.4. My LH is 2.4.6, but I have a 945 Classic '98 so therefore I have the latest.

There are differences in the hardware between the box numbers and software numbers as you may or may not know. But they are only minor and does not really affect the tuning and adaptability. The thing that really changes though, is the software layout.
The different software numbers of the LH is higher the newer the car is, and refer to updated maps + an upgraded basic layout. That is why a chip for a 563 will not work with a 967 (Kenny, if you get the chance to look at different software revisions you will be a little confused when you see the different layouts. It´s fun though.).

Yes, this has been noted. its a pretty interesting setup, but the rom itself tells you what and where things are, i'm working on a program to interpret that for me so I dont have to spend weeks ferretting things out.

I've got about 8 stock ecu images, some are interchangeable, some are definitly not. I find the layout on the 937/951/954 images to be a bit curious (my 940 has a 937 in it) in the map layout. The really neat stuff is digging backwards through the assembly code ;)

Originally Posted by linuxman51

Yes, this has been noted. its a pretty interesting setup, but the rom itself tells you what and where things are, i'm working on a program to interpret that for me so I dont have to spend weeks ferretting things out.

I've got about 8 stock ecu images, some are interchangeable, some are definitly not. I find the layout on the 937/951/954 images to be a bit curious (my 940 has a 937 in it) in the map layout. The really neat stuff is digging backwards through the assembly code ;)

I guess you have seen the acceleration enrichment and warmup as well?

No two cars are alike it seems.

It would be very good if you can figure out how to alter the rpm/load where it switch from closed to open loop.

[stylngle2003]

kenny, i wasn't disagreeing with your personal tuning experiences at all, nor your abilities to optimize the tuning for a given set of components on a given vehicle. i was simply disagreeing with your disagreement to chris's statement that a chip is optimized for one specific set of conditions, since we all know a chip is ideally optimized for one specific set of injectors, one camshaft profile, one particular turbo's particular characteristics, etc.

i am totally aware of the long-run ramifications that your experimentation has wrt high performance tuning of LH2.4, and am fully in favor of your doing so. hell, if you wanted to use mary's 944T as a guinea pig once we have all the parts installed that we plan to
install (hint, everything will be VERY attainable to the common TBricker), i'd pay to fly you and your tuning equipment up here so we could do testing on a dyno.

again, chris said

chips are silly unless they're designed for the hardware, it appears ipd is the only one marketing that, and just for fwders.

you said

eh i dunno that I agree with that.

and i just backed chris up in his line of thinking. nothing personal. no harm, no foul.


my rims would look good on your 740, though

[linuxman51]

Originally Posted by frpe82

I guess you have seen the acceleration enrichment and warmup as well?

No two cars are alike it seems.

It would be very good if you can figure out how to alter the rpm/load where it switch from closed to open loop.

I know where all 50+ tables are and what about half of them concern themselves with, thats about where i stopped when school got busy

[thelostartof]

.

[linuxman51]

eh not really, they're not going much further with it than similarly equiped volvo guys.


this thread is getting a bit gangsta, i dont recall dodges being involved anywhere, if someone has something to add regarding lh architecture, go ahead, otherwise shut the **** up about empty promises and grandiose pictures. I could give a **** about a piggy back, piggybacks are the epitome of hacks. Go get yourself an afc and blue led that **** into the ground. Oh and dont forget the bigger injectors. Or maybe its a e-manage thats been hacked up to work with a volvo. thats just wonderful. Oh wait, its something no one's ever heard of. that sounds, smells, and looks like bull****. if you're really swinging a big dick you'd out with proof. If you're worried about some sort of investment, you can pm me and I won't say **** about it on the forum except to confirm your statements. But you won't do that, so its wasted effort. Not sure what you and mike have going on, but its pretty much understood, if you're going to talk the talk around here, you've gotta be walkin the walk or you're going to get called the hell out.

So here it is. I'm calling you the hell out, and I dont even know you. Whatchu got, aside from decent welding skills? What was the last fast car (not seat of the pants. we've all got viper killers if we're going by ass dyno) you built and how long did it hang around?

Talk is cheap. If you're not going to back your talk up then you need to go on and step the **** up off. All of you.

[thelostartof]

lol sorry kenny .. i rant a bit when i get tired of working on my car .. had to do a ghetto fix to run it tomorrow so my brain is a little gone

good news is once i run it i'll get ya that rom to copy from jpstyling

[InferiorWang]

on some boards this is where we start seeing

IBTL

[TurboBrick940]

Originally Posted by 740ATL

this discussion really is useless and should have been put into another thread rather than clogging up Fred's for sale thread.

Chipping is a bandaid pure and simple. While it provides nice features over the stock system, it will NEVER have the flexibility and potential of a real-time user-tunable system... ever... it's not even arguable.

and believe me, I'm not dissing the chips because I have this thing in perspective... this is going into a car where it will give me the potential to do things I can't do now... and will allow me to drive it without having to worry about tuning... I suspect about 95% of the other people that posted in this thread have the exact same view.

you still haven't addressed the issue of if the fuel cut were removed, would the amm actually be able to measure the additional incoming air or not...

I suggest we drop this into another thread rather than continue this discussion here.

Mike

In my experience the AMM itself is to blame for the cut off. With idle voltage at 2.8-3.0v - and WOT readings of ~5.1

[thelostartof]

Originally Posted by TurboBrick940

In my experience the AMM itself is to blame for the cut off. With idle voltage at 2.8-3.0v - and WOT readings of ~5.1

i still got cutout with the chips and a 3" amm so ... diode to the rescue