JEEP 4.0L engine to GM PCM?

[Taz]

Two V6 4.3 L manual transmission tune files attached below. The 2002 tune uses a 512Kb LS1-B PCM (Serv # 12200411). The 2006 tune uses a 1Mb LS1-B PCM (Serv #12589462 Hdw #12589161). Both are DBC.


Regards,
Taz

[ScarabEpic22]

So I was wrong, you could get the S10/Sonoma with the V6 and Manual. Use one of those files then and not the one I posted as its for a 4X4 Auto.

[THEFERMANATOR]

I knew you could get one, it was just finding it. I guess this also means I don't have to get the ECM out of an S-10, but it could be anything with that ECM and then full flash it to the 4.3L OS? Seems like this should be a pretty doable swap when the time comes then. Sure beats spending $300-500 for somebody else to build me a custom ECM and hope it runs right with my engine combo.

[Taz]

Regarding PCM choice …

As the 4.3 L V6 (L35 / LU3) using the LS1-B style PCM were all DBC, you require a PCM that supports DBC.

All ’99-’02 LS1-B style 512Kb PCMs should support DBC.

Some ’03-’07 LS1-B style 1Mb PCMs support DBC - some don’t (missing the “chip” that controls the IAC).

If you’re buying a used LS1-B style PCM, the following ’03-’07 LS1-B PCMs should support DBC.


V6 applications:

• S10 / Sonoma / Blazer / Jimmy / Bravada / Astro / Safari
• Sierra / Silverado / Express / Savana

V8 applications:

• Express / Savana - if originally equipped with DBC
• ’04 GTO

Regards,
Taz

[DURAtotheMAX]

Well I put a little thought and time into this, and it looks like a 4.3L V6 PCM would work out nicely for this swap. I already have the 87-90 manual flywheel for a 4.0L which is the only factory flywheel with raised nothes to trigger the crank sensor(all others used windows to trigger it), so with some machining it could be made to have just 3 nothces like a 4.3L VORTEC engine has. The distributo in a JEEP already uses a single window in the ditributor for the TDC on #1 just like the 4.3L does. The 4.3L's firing order is 1 6 5 4 3 2, and the JEEP is 1 5 3 6 2 4. If I repin the injectors to match the 4.0L's firing order and run a 99+ style split manifold, I can use a seperate O2 sensor for each manifold and have the dual fuel trim work. The dual manifold splits up the front 3 from the back 3, so instead of going from left bank to right bank it would go from teh front 3 to the back 3. It looks like my main hurdle will be findin a 4.3L with a late model PCM that I can use EFILIVE on with a manual calibration in it for a donor truck so I can get a wiring harness and all of the neccesary sensors and modules. If I could find a 4.3L OS to look at it would be helpful to see about possibly rescaling the TPS to work with a JEEP throttle body which would simplify things even more so.

I have a rare 4.3/manual trans/4x4 calibration from a 2006 silverado half ton.

Whats your email?

[GAMEOVER]

Man, this thread is interesting... 4.0 controlled by LS1 pcm

[THEFERMANATOR]

I have a rare 4.3/manual trans/4x4 calibration from a 2006 silverado half ton.

Whats your email?

You've got a PM.

As far as a PCM goes, I basically need an 0411 like the 96-00 VORTEC guys want? I'm hoping I'll have the funds here in the next few months to get this started as I REALLY miss driving my old COMANCHE. I've got quite a few parts already for my stroker motor out in the shop too.

[THEFERMANATOR]

Man, this thread is interesting... 4.0 controlled by LS1 pcm

I guess I just gotta be different and all. I put a DURAMAX in a 95 BURB, I gotta find a way to raise the bar a little higher next time.

[ScarabEpic22]

You've got a PM.

As far as a PCM goes, I basically need an 0411 like the 96-00 VORTEC guys want? I'm hoping I'll have the funds here in the next few months to get this started as I REALLY miss driving my old COMANCHE. I've got quite a few parts already for my stroker motor out in the shop too.

Yep, as mentioned in a previous post make sure it can do DBW (sounds like all 512kb PCMs can, what Id use).

I guess I just gotta be different and all. I put a DURAMAX in a 95 BURB, I gotta find a way to raise the bar a little higher next time.

Nice! I really want to make a Duryukali (Duramax in a Yukon Denali 5pass) for my parent's next SUV, but my mom likes her Audi Q5 instead. Too bad it cant tow jack, looks like Ill be towing the boats forever now haha.

[EagleMark]

You guys are having too much fun!

I'm doing a similar GM ECM to a 4.0L engine but plan on using a 427 ECM as I am familiar with the earlier OBD 1 stuff. Plans are using my 258 bottom end with a 4.0L head and the newer 2001 tuned port intake. Originally thought of removing the throttle body and machining a GM throttle body. But recently looking into using the Jeep throttle body, IAC, TPS, IAT and possibly the MAP as they are already there but don't know yet if the GM ECM is capable. So I will be following along here. Good luck with your swap!