MHD Updates - Shift Bog (Tq Lim 2048) Delete & PI Safety

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Major
Platinum Vendor
Nov 7, 2016
1,528
1,964
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Philly
Hey guys, make sure to grab the latest MHD update! FlexFuel is "officially" official, and bringing with it two other of my long time coming fixes.

1. Shift bog delete - Tq Lim 2048 is gone for good. JB4 crowd, plug you clutch wires back in :laughing:
2. PI Safety - a cylinder's ignition coil is now cut whenever it's injector is (misfire, tq control, too much knock, fuel cut, etc). ALL PI users should check this box, and it is especially important for 6MT PI users with shift bog delete.

Enjoy!

p.s. I feel bad for all the 6MT axles. Now go and break some records.
 

Xshadows

Corporal
Nov 4, 2016
122
72
0
Sanford NC
Hey guys, make sure to grab the latest MHD update! FlexFuel is "officially" official, and bringing with it two other of my long time coming fixes.

1. Shift bog delete - Tq Lim 2048 is gone for good. JB4 crowd, plug you clutch wires back in :laughing:
2. PI Safety - a cylinder's ignition coil is now cut whenever it's injector is (misfire, tq control, too much knock, fuel cut, etc). ALL PI users should check this box, and it is especially important for 6MT PI users with shift bog delete.

Enjoy!

p.s. I feel bad for all the 6MT axles. Now go and break some records.

You are a god! Thanks! Now I can start talking shit to everyone and getting good races in without shift bog or blowing up! :D
 

Blaster3500

Sergeant
Nov 5, 2016
295
245
0
SC
Hey guys, make sure to grab the latest MHD update! FlexFuel is "officially" official, and bringing with it two other of my long time coming fixes.

1. Shift bog delete - Tq Lim 2048 is gone for good. JB4 crowd, plug you clutch wires back in :laughing:
2. PI Safety - a cylinder's ignition coil is now cut whenever it's injector is (misfire, tq control, too much knock, fuel cut, etc). ALL PI users should check this box, and it is especially important for 6MT PI users with shift bog delete.

Enjoy!

p.s. I feel bad for all the 6MT axles. Now go and break some records.

THANK YOU!! This should be huge for the platform especially the 6MT guys. Can't wait to see results and try it out once I get my car back together.
 

Seaneezy

Corporal
Mar 12, 2018
132
34
0
Ride
e90 LCI 335i
How did testing for the PI safety go? I'll be really glad if this actually solves the PI scare. Great job nonetheless
 

Rob09msport

Major
Oct 28, 2017
1,929
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Monroe CT
Ride
09 335i msport le mans 18 x5
Will this help 6at guys with post shift timing ? And really no harm I checking pi safety correct ? So meth guys should def do but I would see no reason for everyone not to use ?
 

[email protected]

Major
Platinum Vendor
Nov 7, 2016
1,528
1,964
0
Philly
How did testing for the PI safety go? I'll be really glad if this actually solves the PI scare. Great job nonetheless

It went great. @V8bait tested it and visibly observed the coil not fire when the DI injector was cut. It has also been rolling around on various cars for the past 2 months.

Will this help 6at guys with post shift timing ? And really no harm I checking pi safety correct ? So meth guys should def do but I would see no reason for everyone not to use ?

This is just for those transmissions that see Tq Lim 2048 during shifts, AT is not one. The AT post shift timing needs some other code written, that is still WIP.

Now anti-lag and single bank mode and integrated boostbox and flexrays interpreter box and secondary hpfp control and, and..

Haha, trying to get it all done. There is a lot more that you missed on that list though =(

Dear sweet jesus thank you for the shift bog delete!

Does cruise control still work?

You bet.
 
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suspenceful

10 Second Club
Aug 1, 2017
543
555
75
Ride
2015 M3, 2008 135i, 2009 335i
This is what we've all been waiting for :)

Just loaded both options and going to test tonight or tomorrow. Will report back with my impressions... fingers crossed!
 
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langsbr

Captain
Apr 5, 2017
1,253
744
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07 335i 6MT e90
@jyamona, how would one know if they were hitting shift bog from a log? Is there a code thrown, or is it just conditions that indicate it?
 

veer90

Lieutenant
Nov 16, 2016
1,000
773
0
West Nyack, NY
Ride
e90 335i 6MT
@jyamona, how would one know if they were hitting shift bog from a log? Is there a code thrown, or is it just conditions that indicate it?

MHD has a logging channel called torque limiter active iirc. I remember seeing it go from 0 to 2048 a few times on my old tune with twins. Usually associated with DSC intervention / redlining it
 

[email protected]

Major
Platinum Vendor
Nov 7, 2016
1,528
1,964
0
Philly
@jyamona, how would one know if they were hitting shift bog from a log? Is there a code thrown, or is it just conditions that indicate it?

Yea, tq lim active will show as 2048 during the bog (this is true shift bog). It is now gone. There are a variety of other tq lim active, I will get into them in a post on here one of these days. For now this one is the biggest issue.
 
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nahor

Specialist
Sep 15, 2017
54
35
0
Ride
2010 BMW 135i Single Turbo
This is awesome. Now since the root cause is eliminated, is it worthwhile setting all the old shift bog tables in the bin back to stock?