CMC High RPM Fueling

[2007 5.9]

Thats the way everything is going, you either figure out how to do it yourself, or purchase "base" files with it already done so you can tune on top of it.

Which is precisely why this thread was started...the CMD and CME controllers have high rpm...we're simply asking Ross to look at it again for the CMC.

I know and have read that it was difficult for him the first time around, but being that it's the only controller without high rpm fuel...please look at it again.

[GMPX]

Les, I know you use several tuning packages, do any of them have it solved or is there only a select few users that can do it?

[Mitco39]

Ill help out.

OS - 11520902
Addr - 1620EA
Factor - .125

That will get you one of the limiters that everyone is hitting in the ECM.

[Mitco39]

UDC has it, but its done differently than I figured out how to do it. Not sure what switch they found but I was unable to find it.

[2007 5.9]

Les, I know you use several tuning packages, do any of them have it solved or is there only a select few users that can do it?

I can't confirm on the other platforms, I only use efi for 06-17 trucks.

The "other" company doesn't have DTC'S avail for the CMC, so most don't bother with it.

As for the Mads platform, I can't say if they do or don't.

[comnrailpwr]

I have used the warp platform on a 12 and it would do fuel past 4k but have never sued it on the CMC controller.

[GMPX]

That is strange Mitch, at the time of testing this we had that defined but the problems still existed. I can re-enable it no problem but I hid the cal for the reason below...
It is in a VERY dangerous area of the ECM, if you don't load a modified bin in to EFILive and save the file (so the checksums are corrected) it will brick the ECM.....speaking from experience.
Also, from memory it is not in every OS, the earlier ones did not have it.

[GMPX]

I can't confirm on the other platforms, I only use efi for 06-17 trucks.

The "other" company doesn't have DTC'S avail for the CMC, so most don't bother with it.

As for the Mads platform, I can't say if they do or don't.

Sorry Les, I knew you did for the SCI ECM's and had maybe had a go at the CMC with those softwares too.

[2007 5.9]

Sorry Les, I knew you did for the SCI ECM's and had maybe had a go at the CMC with those softwares too.

No, they have the same approach as you guys do for the dtcs (CMC, CMD and CME) vs just CMD and CME for Efi. So unless tuners can work in a deleted environment with the CMC, no real reason to invest time in finding limiters.

[Mitco39]

That is strange Mitch, at the time of testing this we had that defined but the problems still existed. I can re-enable it no problem but I hid the cal for the reason below...
It is in a VERY dangerous area of the ECM, if you don't load a modified bin in to EFILive and save the file (so the checksums are corrected) it will brick the ECM.....speaking from experience.
Also, from memory it is not in every OS, the earlier ones did not have it.

Very weird, I was rummaging around in there quite a bit and the ecm took every flash just fine. Basically what I did was rev out the engine and see what the hard limiter was, in this case IIRC it was 3850 and started looking for that in the BIN and started checking off the instances of it. I was finding the address's in winOLS and using a cax to modify them thus allowing efilive to do the checksums each case.

Now I have about 10 of these limiters cax'd currently and when I finally got it it was around 11pm after looking at it all for 15+ hours so I set all them to 5000rpm and tested it and got it. So I am not sure if all the changes are needed but i had no issues with bricking through and through. I guess I was just lucky then