mcc control of egr

sonic blue l · Jul 31, 2014

Just curious those who have been using mmc if you can control egr position based upon exhaust back pressure?

I'm pretty much convinced myself to buy mmc, mostly due to the fact that I want load based shifting, but if I can control the egr how I like then its a no brainer.

Thanks for any information.

TD-5 · Aug 1, 2014

No I don't think you can, EGR set point (% open) is controlled by RPM & Torque as the two variables that determine valve position.
In HD300 the EGR is completely shut off. I have never looked at the Easy & Mild Tuning files thru MCC, but apparently "easy" still cycles the EGR. The tables would probably look something like the stock tables.

sonic blue l · Aug 1, 2014

thanks for the info.

guess there is no " free " waste gate

ckrueg · Aug 1, 2014

You could open it at high rpms and torque which is when the ebp is highestThat might work.

AllGo'N'Show · Aug 2, 2014

TD-5 said:
No I don't think you can, EGR set point (% open) is controlled by RPM & Torque as the two variables that determine valve position.
In HD300 the EGR is completely shut off. I have never looked at the Easy & Mild Tuning files thru MCC, but apparently "easy" still cycles the EGR. The tables would probably look something like the stock tables.

My mild maps show 0's throughout (disabled) those same screens FYI