Road speed constant, IP divider, and not moving delay terms are in the 58RR_V12.ECU and uploaded.

RBob.

 

Wow, you are fast!

Thanks about the MGVSS flag, I was wondering if it was hidden somewhere

Again, Thanks!

 

This is all really exciting. It looks like I picked the right time to get into ECM tuning. This all makes me wonder if I shouldn't have waited about doing the '730 swap and just went with a '749, even though I'm N/A.

**Silly question alert**:
I assume that this ECM can be made to work on a N/A application? Seems I've read some things that would indicate such. If so, I may build an adapter harness to A/B the '749 & '730 on my car. Hmmmmmmmmm........

 

From what I've read if you aren't gonna boost the 730 is better code or at least easier to work with then the 749.

 

Care to list specifics?.

And once your dealing with source code, if better routines are found they are patchable into it. So even if your statements were true it's mote since because of the code being patchable. If you were to look at the source code I've posted, you'll note there is a huge amount of code space to work with.

 

The ecm isn't really an issue since the 58 code will run in a 730. But there are some pinout changes.

The 58 code was justed in N/A applications.

 

Grumpy -

I was mostly reffeering to the injector constant not working and IIRC the fact that, this is straight from the FAQ:

Additionally, the fueling code is based on BPC/BPW funtions vs
ideal gas law math on $8D. $8D is a lot more "refined" on a N/A setup, but obviously after 100kpa it
is useless.

Correct me if I am wrong about those two things...

 

It isn't so much of a question as to which ECM to run, as it is a question of which mask to run. The $58 mask runs just fine in a '730 ECM. Whereas the $8D mask almost runs just fine in the '749 ECM.

I say 'almost' because the '749 doesn't have the output for the TCC/Shift-light of the $8D mask. If running an auto w/a a TCC then the $8D in a '749 is a bad idea.

The A/B harness is only required for switching masks, not the ECM.

The best thing to do is to pick a mask that fulfills the engine requirements and learn it.

RBob.

 

BPC, is just another way of dealing with the injector size. The fact the injector size isn't used in the 58 code, would be like saying all the TBI codes suffer the same short coming, since they deal with BPC.

Refined, doesn't always mean better. And as of late, I've found that having more resolution will more then make up for the difference from a gas law calc, to TBI form of calc. With the cource code being available a simply creating a new look up table with increased resolution can put the 58 code miles ahead of the 8D in that reguard. The Subject here is about source code, so the stock limitations only apply to all the other non source code available codes, with source code, the picture now completely changes.

Simple code done cleverly is now the key, IMO. Simplier now just means it makes the tuning easier. Given enough resolution even rather primitive code, and strategies can be made to work very well.

Stay tuned, there's some neat new stuff just around the bend. Now, we just need to get more people active in working with this.

 

RBob, that makes perfect sense. I do understand the Motorola assembly language, so I should be able to make the $8D do what I need it to by whittling away at it. I just really need an ECM bench to get it together, and I plan to get one soon. Maybe I jumped the gun there with my question, but I'm just a little giddy with all the advances in DIY tuning of late..........

 

The only reason (I've found) to go 749 is the need for dual injector drivers that can handle 8 P/H injecotrs if they are replaced.

/N.

 

A $58 definition Mechanic can't claim is his! Yay!!! (though history says he'll do it anyway, and the file will be banned from TGO to avoid even an impossible to win lawsuit, and even fewer people will ever consider purchasing a product made by such a ... I can't say those words ... has anyone bothered to tell Mechanic how much potential business he's lost over this?)

:hail: Grumpy :hail: RBob :hail: