no 3.8 support?

[Madspeed]

Unless im blind I dont see an 00 3.8 v6 supported. I want to do some crazy crap to my 00 impala. need to tune it to run a dry N2o system which is actually going to be another set of injectors firing CNG. Please dont tell me I have to go buy HP tooners when I already own EFI live

[GMPX]

Please dont tell me I have to go buy HP tooners when I already own EFI live
In the immortal words of Maxwell Smart "I asked you not to tell me that".

[Madspeed]

EEEEK what a bummer another car I cant tune. Sigh!!!! lifes a beach I guess. see you from the dark side.
Hmm Is thier another ecm I could substitute without to much issue? I can find all kinds of ecms in the junkyards here. Ive seen the newer malibus

[GMPX]

I think TunerCat offers programming for those PCM's too.

[wait4me]

Someday, if Ross does write the bootloaders, and Paul sets up the software to handle the bins, and os identifications, then i will add in full support for them. They are busy guys though..... Cummins = 99.9999% of time. the rest is sleep....

[GMPX]

We should talk again Jesse if you are willing :good:, with the changes we had to make to the software to support Cummins, a lot of what was going to be difficult for the 3800 PCM is now in place to expand on.
Let me know when you pick up a GTP.

[wait4me]

lol i can buy 10 tommorrow if you would like! arent they like 500 bucks a piece now??

[wait4me]

Looking thru, i think i have them close to being done to match the ls1 templates? I must have done it 5 years ago it looks like????

[wait4me]

If 30 people show interest in this thread, Ill finish them up.

[kangsta]

Pretty sure the read bootloaders are already written. See here http://forum.efilive.com/showthread.php?12729-BBR-for-old-V6-s&highlight=v6+bootloader

[GMPX]

Shhh, don't tell anyone we actually seriously got stuck in to these things many moons ago. I still have a pile of those V6 PCM's here, I should peel the stickers off and sell them on Ebay as LS1 PCM's.
Read, Flash, everything was done, but at the time there was DHP and HPTuners supporting them and getting nothing but grief over it, we chose to stick with the Duramax instead, I think that worked out better :laugh:

[wait4me]

You are correct Kangsta, Post number 5 states what needs to be done. Reading is already complete.

[wait4me]

LOL @Ross..

[kangsta]

You are correct Kangsta, Post number 5 states what needs to be done. Reading is already complete.

lol looks like quite a few posts got done between me reading the post and replying.

[GMPX]

Ah, now I remember these PCM's, horrid code design with no layout consistency, no nice OS part number identifiers to reference, yuk!

[wait4me]

The os number we can use is right in the file, around the 6FA32 area. it is in open text. for example, pull out vin for 1G2WR52152F262846. look at that location. LOL to the person that owns that vin, it has an open recall for Engine fire hazard. ;)

[wait4me]

uggg, it is in different addresses per years, 2003 was at 6F9B2

[wait4me]

Figured it out.


Last value at eof. 00BFF537A55A example, at end of 512k file. The A55A is to tell end of bin. The 00BFF537 converts to 12580151 via 32bit big indian. It also validates to Tisonline for valid os number.

This is working on Every v6 cal. so far. The other value that is raw text, is the part number. The end one is the cal id. Next problem???

[wait4me]

Going to have to WAY downsize the templates, I have 800 perameters figured out which was a ton more than everyone else, but it would take months to add in each os. It looks like ill have to dissasemble a few older ones, as i only did 2000 thru 2007 on them. 2006-Dec-23 was completion date...

[GMPX]

Keep going Jesse, you'll find someone at GM was having a bad day (or bad few months), the data at the end of the bin is not always consistent, I'll see if I can find you some examples, but don't stress, I just looked over our old work here and I did come up with a 100% perfect way to do this, but at the time we didn't want to go to the trouble to integrate it in to EFILive, but now something similar is in there for the Cummins ECM's it's probably not too bad.
The P05 was a shocker too, in the later revisions the layout totally changed to something more like an E40.

I'd even figured out how to cal only flash them safely (I believe the others just brick the PCM if you cal flash the wrong thing in).
2006, wow, many years have gone by indeed.

[Highlander]

DHP did Cal only flashes... I

[Madspeed]

sooo ummmmmmmmmm is their hope? sure dont want to throw an etra 350 to another company when I could buy a lic to do what I want and poss sell a cng conversion setup for some of these turdds around here. CNG is hot in utard (Utah) id like to be able to flip a switch like you would w N2o and have the ecm change fuel mapping to actually run another set of injectors that I will build a board to switch back and fourth between sets (gas/cng)

[wait4me]

Custom os with switches would be out of the question, Not enough interest/vs time/income for that one.....

[Madspeed]

hmmmmmm how could i setup the cng injection to be controlled by the ecm and not have a huge difference in mapping. I guess Id need to tune it via pressure and wideband o2 to keep it within fuel trims? next issue is the timming increase. would you think the ecm will keep pushing timing limets fast enough and far enough to regain some of the lost power?

[Highlander]

sooo ummmmmmmmmm is their hope? sure dont want to throw an etra 350 to another company when I could buy a lic to do what I want and poss sell a cng conversion setup for some of these turdds around here. CNG is hot in utard (Utah) id like to be able to flip a switch like you would w N2o and have the ecm change fuel mapping to actually run another set of injectors that I will build a board to switch back and fourth between sets (gas/cng)

You could do a Road Runner and I am sure there could be a hardware way to do a switch.

I wish I could change maps on the fly like the GTRs and cobbs do.

[GMPX]

DHP did Cal only flashes... I
I'm not criticising DHP with this comment, but I think you had to make sure you were flashing in the right thing because if it was wrong it bricked the PCM?
And that is part of the problem with the V6 PCM, the OS spills in to the calibration area (defined by the Flash memory block sizes), so if you do a cal flash you have to be 100% sure the OS portion is the same.


sooo ummmmmmmmmm is their hope?
Nothing will happen as a beta in any shape or form this year, we are already behind on other things. Plus, we've travelled this road before and it never happened.


id like to be able to flip a switch like you would w N2o and have the ecm change fuel mapping to actually run another set of injectors that I will build a board to switch back and fourth between sets (gas/cng)

Custom os with switches would be out of the question, Not enough interest/vs time/income for that one.....
What wait4me said.


You could do a Road Runner.
Good Point, RR works on the V6 PCM.

[Highlander]

A road runner would be extremely killer for these ECUs.

I do see the lack of market. People that right now are into these cars don't want to pay for tuning, but then again, they might do it themselves... I think there might be market and suddenly they spark again. The newer superchargers fit these older engines and there are a lot of turbo kits and centrifugal superchargers available for them.

[ScarabEpic22]

Horrible coding in the V6 PCMs, sounds like the P10 all over again?

(Ross and Jesse are gonna kill/ban me now...uh oh!)

[Boost]

It would be pretty sweet. I love the torque on those engines, and they have quite a following.

[Madspeed]

What about a different ecm that IS supported by EFI? like what would you go after and I can just grab an ecm from a car in one of the yards here.
Dam I wish id have finished elementary/middle/ high school and collage I might have ben able to unserstand some of this programmin stuffs

[wait4me]

what you are asking for mad, is not going to be easy. I would suggest you using an aftermarket controller for that. One that is made for that kind of thing.. It is hard to just put in other computers from cross platforms and expect other things in the vehicle to be happy.. It is possible maybe, but time/vs ambition is another story. Sorry!

[Boost]

Yeah if it was that easy I would have been tuning my NIGHTMARE 2004 Saturn Ion 2.2 a looong time ago, instead of desperately trying to get rid of it for something tuneable!

[Madspeed]

Arrgggg. I would think they used a different ecm in another car same year maybee different engine but same trans like the 3400 or 3500 or some crap. It also has to have obdII compliance and with a factory ecm I can fudge that part in. I think that can bus would be the part to be scared of but gm usually makes things cross platform pretty easally so they dont have to have lots of different parts made or storage for said parts. seems GM is about the smartest manufacture in not redesigning everything for every model. Im searching forums as we speak

[Madspeed]

Where the hell do I find an 00 s10 v6 4.3 ltr tune file so I can look at it and decide if I can swap to that pcm?

[GMPX]

I don't think you could, I'm pretty sure those engines have different crank shaft position signals.

[ScarabEpic22]

Yeah if it was that easy I would have been tuning my NIGHTMARE 2004 Saturn Ion 2.2 a looong time ago, instead of desperately trying to get rid of it for something tuneable!

Have you thought about using a LS1B PCM and just using half the cylinders? I know a few people on here are running I4s this way.


Where the hell do I find an 00 s10 v6 4.3 ltr tune file so I can look at it and decide if I can swap to that pcm?

Ive got one for an 02 4.3L Blazer, here's a link to the thread I posted it in: http://forum.efilive.com/showthread.php?20182-Question-on-2002-Chevrolet-Blazer-4-3lt-V6&p=177243&viewfull=1#post177243


I don't think you could, I'm pretty sure those engines have different crank shaft position signals.

Yep, Im pretty sure Ross is right on this one. Do you know what the crank signal on the 3800s is? 7x/1x, 24x/1x, and 58x/4x are the only 3 I know of but GM could have easily used others.

[Madspeed]

they both are 90 deg v6's so i guess crank sig is the key. I sure do appreciate the efforts. i really dont want to go buy more software :banghead:

[Madspeed]

dangit. so far all i can find is they both sharethe same firing order and v. 3800 has 2 reluctors and a cam position reluctor has a 3x and ohh crap here =) Crankshaft Balance Interrupter Ring
Each interrupter ring has blades and windows that either block the magnetic field or allow it to close one of
the hall-effect switches. The outer hall-effect switch sends a pulse called the 18X reference signal. The
outer interrupter ring has 18 evenly spaced blades and windows. The 18X reference signal produces 18
ON-OFF pulses per crankshaft revolution. The inner hall-effect switch sends a pulse called the sync
signal. The inner interrupter ring has 3 unevenly spaced blades and windows of different widths. The sync
signal produces 3 different length ON-OFF pulses per crankshaft revolution. When the sync interrupter
ring window is between the magnet and the inner switch, the magnetic field will cause the sync hall-effect
switch to ground the supplied voltage from the ICM. The 18X interrupter ring and the hall-effect switch
react similarly.

Camshaft Position (CMP) Sensor
The camshaft position (CMP) sensor signal is a digital ON/OFF pulse, output once per revolution of the
camshaft. The CMP sensor does not directly affect the operation of the ignition system. The CMP sensor
information is used by the powertrain control module (PCM) to determine the position of the valve train
relative to the CKP. By monitoring the CMP and CKP signals the PCM can accurately time the operation of
the fuel injectors. The CMP sensor shares 12-volt and low reference circuits with the CKP sensor. The
CMP signal circuit is input to the ICM.

[Boost]

Have you thought about using a LS1B PCM and just using half the cylinders? I know a few people on here are running I4s this way.

What?? Is this even possible? Who can I talk to to learn about this? What kind of harness mods are needed? Thanks

[ScarabEpic22]

What?? Is this even possible? Who can I talk to to learn about this? What kind of harness mods are needed? Thanks

I think its Mike/swoch (not sure exactly what his s/n is, but thats close).

[ScarabEpic22]

Bump, new pre-release has reading support for these V6 PCMs. Start reading 'em out and sending them into support!

[playtoy_18]

hmmmmmm how could i setup the cng injection to be controlled by the ecm and not have a huge difference in mapping. I guess Id need to tune it via pressure and wideband o2 to keep it within fuel trims? next issue is the timming increase. would you think the ecm will keep pushing timing limets fast enough and far enough to regain some of the lost power?

You need a omni-tuner dual-flash pcm.
Noodih on 3800pro does them at pcmcalibrators.net


What is the OmniTuner DUAL-FLASH?

The OmniTuner DUAL-FLASH is a member of the OmniTuner line of products by Digital Inflection Corporation. This device allows you to install two separate flash chips in one Powertrain Control Module. Most GM Generation III applications are supported but when ordering specify which PCM you have so that the DUAL-FLASH has the proper flash chips installed. GM used both 512k and 1 megabyte flash chips in the GEN III PCMs.

The DUAL-FLASH replaces the flash chip that was installed by the factory with two separate OEM flash chips that individually appear to the PCM as a single flash chip when selected. Through the use of a switch of your choice you have the ability to select which one of these flash chips is used by the PCM. You have the ability to switch between flash chips only when the ignition is in the “off” position to prevent accidently switching between flash chips when the car is running.

Possible applications for the DUAL-FLASH include tuning a vehicle for multiple fuels, assuming this tuning is compliant with emission regulations. You can use ethanol based fuels when available and switch back to conventional fuels when desired. Additionally you might choose to tune one flash chip for fuel economy but leave the other flash chip stock. Any tune that you can flash to a stock PCM can be flashed to either one of the flash chips of a DUAL-FLASH enabled PCM.



While your there ask him about converting your single bank 02 3800 to a dual bank 02 3800 like the f-bodies use.