ECM tuning anounment

[isuzu Specialities]

To build my 450 horsepower 3.2L Isuzu V6 I needed a solution for controlling it. Standalone EFI systems are expensive and require a lot of effort to install. This whole project started because if successful I just saved myself more than $3,000.

To figure out how to crack the 3.2L V6 ECM I needed clues from the 2.6L & 2.3L 4+cylinder ECM and vice versa. A result I accidentally develop one system for all Isuzu passenger car & truck engines.


If you have googled anything about Isuzu engines there is little to no useable information about them. This is because of an agreement with various partners involved with these engines. I have taken alternative avenues & countless hours of research, tracing the origins of Isuzu engines for clues of what this system is, who developed it, who made it & why. Once I figure that out a I had a starting point I could begin writing & experimenting with code & protocol.

Many people asked to track my progress which I really didn't want to do but, I did anyway.
That turned out to be a big mistake.. as I've taken a lot of shit because of it.. but that's is a different conversation..

Fortunately my parents raised me to not give up. They taught me failing is okay because it's only teaches you how not to go about it. Don't believe the naysayers and everyone else can piss off.

From my starting point.
It took me 5 months to break through the security measures and figure out the handshake & echo commands. This is the key to which allows the two computers to talk to each other. I took 9 months to decipher the data figure out what is what and then make a program file that will decode this data and display that information so humans can easily make heads and tails of it.

After that was done now I could manipulate the software for the fuel injection & ignition system. But I still had no way of uploading my modifications into the ECM. To figure out how to go about that took an additional 7 months.

Then I developed a second version of software & files that is far better than the first version. Giving me more parameters to make adjustments too.
I also changed my original cabling to a simpler and easier cable that provides dual functions eliminating one extra piece of hardware.

After 2-ish years of developing hardware, cabling and software to make this all possible I have come to the end of this project. My original goal was to figure out how to tune my own ECM & I have more than achieved it. My second plan was to market this as a plug and play tuning package. I realized I have too much going on and won't have the time to develop this project any further than it is now. By the end of the week I will be giving away all the tuning files I have developed....for free.

These files are compatible with TunerProRT v5 only. They are the BIN, ADX XDF file types that tunerpro requires. TurnerProRT is a free open source software that you can download from their website. I will also be giving away information about cabling communication protocol and the equipment you must purchase for it to work. This system is not a marketable product at this point There are some mistakes There are some things that are incomplete and for those who are unfamiliar with how to tune an engine It you will have a huge learning curve.

At this time I cannot provide any tech support or troubleshooting for the system I've developed. I do not have the time to explain detailed instructions of every single step required as it is very technical. Perhaps in the future I may. Or maybe someone out there would care to help me?

What can you do with this?

The files & information im giving away will work on all OBD1 and OBD2 Isuzu 2.6L 4 Cylinder plus 3.2L & 3.5L V6 engines. It will probably work on diesel engines too although I haven't tried it. The GM 2.8L V6 system already exists and is available from TunerProRT too.

Today I have successfully flashed 9 2gen V6 trooper ECMs. As result of that I have discovered that with the addition of Porsche injectors & a ECM tune, this yields approximately 40 more horsepower on the 3.2L SOHC V6.

I have successfully flashed seven first gen 2.6L Trooper ECMs. As a result with modifications of factory parts that are already installed on your engine, camshaft, exhaust system plus the tune approximately 200 horsepower is achievable.

Stay tuned.....

[84 s10 diesel]

Thanks for sharing! Cant wait to learn more

[isuzu Specialities]

Not directly related to older pups with 4 cylinder engine.... But in a way it is. Because if I couldn't figure this one out cracking the 2.3 & 2.6 ECM wouldn't have happened.



The biggest secret about the 1992 and up Isuzu V6 fuel injection system

The EFI used on the Isuzu V6 is Multec made by Delphi. Multec was first used on Cadillac's & Corvette's in the early 90s. It is a licensed product form Bosch called Motronic. Over the years different version of either 2.8, 2.82, & 3.7.2 was used. These same systems manufactured with different ECMs and non-interchangeable parts can be found on BMW, Volvo, Saab, Alfa Romeo, Porsche, Fiat, Opel, Holden, Farrari, Mitsubishi Lada & Citroen. 1997 and up it changes to Saab's Trionics.

The common belief is these ECMs cannot be tuned because the ROM is "Frozen" or "CrowBar" making it impossible to rewrite the data.

This is not a myth. This belief is 100% absolutely & undeniably true.

So....are you confused yet?

If you look up the data sheet form the individual electronic IC you will notice something odd. There is one IC on the board that has no data sheet. This is because the number on the IC is purposely mislabeled to denture people like me form tampering with it. Delphi strategy worked well for over 25 years. After I identified exactly what IC was used in this ECM is when progress really started. I learned that the memory cannot be rewritten. however, the chip has a seconded memory bank that is unused. To activate this section all I needed to do is install a stupid toggle switch. The switch is connected to a pin of the IC. When the switch grounds out the pin on the IC data is pull from memory bank B while ignoring the Delphi programing located in memory bank A. Cloning the data from a different GM engine to use as a base program or templet, I modified it to work with the Isuzu 3,2L V6 as a result it can now be tuned like any other ECM.

[isuzu Specialities]

How this started & how it will end ....

To build my 450 horsepower Isuzu 3.2 V6 I needed a solution for controlling it. Standalone systems are expensive and require a lot of effort to install. This whole project started because if successful I just saved myself more than $3,000.

Once I crack the security I continue to make good progress and I just kept rolling with it. What I learned help crack that 2.3L & 2.6L I-Tec ECM too.

Many people asked to track my progress which I didn't want to do but I did anyway. That turns out to be a mistake.. but that's is a different conversation..

Now that I've successfully flashed my own vehicle's ECM multiple times. I have built 5 of my new 200HP 2.6L crate engines & going on #6&7. I have more than achieved my goal.

At one time early on I had planned to put this all together in one package and market it as a tuning solution system... Like a kit. The other idea was to license what I've created to tuners all over the country. However to get it to that point from where it is now takes more time and energy than I have. Moreover the market for such a product is very small and I probably wouldn't see a return.

So I've decided to do the next best thing....
As a kid I learned a saying from a 90 year old man who was very influential in my life. he told me this which I didn't fully comprehend until years later...
He said to me;
"To keep what you have, You must give it away"

If your vehicle has a 2.3L or a 2.6L with I-Tec EFI or any of the Isuzu V6 engine found in other models this anounment is for you.

I am giving away all tuning files I created that didn't exist before. I'm giving away the secrets on cabling, connecting, reading, writing and flashing all Isuzu ECM.

This will provide you not with a generic plug and play tune.. this will provide you with the tools and resources required to do it yourself or supply a local tuner this information allowing them to do it for you.

The system is not 100% tested on all engines. It is not tested on any EFI system located outside of the USA. What I have developed is not a marketable product. For those who are not familiar with TunerPro there will be a learning curve required to use it.

Also know that Isuzu I-Tec EFI system is simply nothing more than a trademark name. What the system truly is isn't nearly as obscure as isuzu people falsely believe it to be.

To receive this information, software & tuning files shoot me your email address and the year & engine of your vehicle. From there I'll reply with a ZIP file attached for you to download.

[mja]

Good stuff Shawn! Will you still be able to tune your builds for your customers when you give the files and equipment away? For example, if customers buy a 200 hp 2.6 build from you will it still make 200 hp

[isuzu Specialities]

Good stuff Shawn! Will you still be able to tune your builds for your customers when you give the files and equipment away? For example, if customers buy a 200 hp 2.6 build from you will it still make 200 hp

All the Turn Key high performance crate engines have developed, and I sell that requires ECM tuning are all done by me. Your engine will come with a reprogramed ECM & rebuilt wiring harness.

I Am not physically giving away any of my equipment or software. This give away isn't an ECM flash that when installed into the ECM you will have a bunch of more power... Unfortunately, it doesn't work that way.

The giveaway includes the information, software, a zip folder with special files (think of them like a key) that TunerPro need to function.
The email includes a link to my FB page that has more information on how to connect to your vehicles ECM.
Also included are links to websites where the correct data cable can be purchased. A link to download a free program you need to configure the cable and test before using. Another link is provided to a website where you can download TunerPro for free. A link to my FB page that has basic instructions on where to connect the cables to your vehicles and how to initiate communication.
Finally a downloadable ZIP file that contains the 3 program files i developed which are required by TunerPro.

I have also developed an alternative way to flash the I-Tec ECM via the circuit board using what is called J-TAG. This requires some different equipment that cost a few hundred bucks, however its much easier way to go about it.