[AndyPag]

Quick question, will the MHD CAN ECA work with my BM3 tune on my B58 F32 440i? If anyone is selling a flex fuel kit, let me know. TIA

[morritse]

You need to flash a custom firmware, but it's pretty easy, contact bimmer ECU solution

[kern417]

It won't work with OTS. You could tap DME wires like a reflex but not really advised.

[morritse]

Originally Posted by kern417

It won't work with OTS. You could tap DME wires like a reflex but not really advised.

Yes it will... You just need a different firmware. New firmware for the MHD ECA works with MHD and bootmode completely ots.

See this thread.
https://f80.bimmerpost.com/forums/sh...2#post30196522

[kern417]

Originally Posted by morritse

Yes it will... You just need a different firmware. New firmware for the MHD ECA works with MHD and bootmode completely ots.

See this thread.
https://f80.bimmerpost.com/forums/sh...2#post30196522

The F80 kit is completely different from the B58 kit.

[morritse]

Originally Posted by kern417

The F80 kit is completely different from the B58 kit.

Dude I'm literally running the MHD flex fuel kit on bm3 right now. It's probably fundamentally the same zeitronix sensor.

[B58]

Originally Posted by morritse

Dude I'm literally running the MHD flex fuel kit on bm3 right now. It's probably fundamentally the same zeitronix sensor.

Does the actual MHD ECA need the firmware update?

[B58]

I emailed BIMECU and this is what they told me:

Bm3 does not have a selection

It should work right away,
It does not?

---

Does BM3 even read the ethanol content?

[n55david]

Originally Posted by B58

I emailed BIMECU and this is what they told me:

Bm3 does not have a selection

It should work right away,
It does not?

—-

Does BM3 even read the ethanol content?

According to most people here bm3 doesn't do anything lol

[morritse]

Originally Posted by n55david

According to most people here bm3 doesn't do anything lol

With MHD ECA. Works perfectly with flex fuel tunes.

[n55david]

Originally Posted by morritse

With MHD ECA

I'm aware.. lol I only run bootmod3

[morritse]

Originally Posted by B58

Does the actual MHD ECA need the firmware update?

Yes, read the f80post thread, it's the same process. I have the firmware but I'm not sure they want to release it publicly yet.

[B58]

Originally Posted by morritse

With MHD ECA. Works perfectly with flex fuel tunes.

Where in the settings are you finding the ethanol sensor? Mine appears to not be listed.

[kern417]

Originally Posted by morritse

Dude I'm literally running the MHD flex fuel kit on bm3 right now. It's probably fundamentally the same zeitronix sensor.

It's not about the sensor. It's about where the data is communicated. That's why BM3/Dorch/Etc tap into the footwell module.

Same reason it doesn't work on manual cars. My 440i doesn't even have the plug that MHD communicates through.

Also a reason why there are separate options for MHD, Zeitronix, and Reflex for flex fuel communication.

If you have a secret software version that makes it work, cool. But on principle it doesn't work.

[morritse]

Originally Posted by kern417

It's not about the sensor. It's about where the data is communicated. That's why BM3/Dorch/Etc tap into the footwell module.

Same reason it doesn't work on manual cars. My 440i doesn't even have the plug that MHD communicates through.

Also a reason why there are separate options for MHD, Zeitronix, and Reflex for flex fuel communication.

If you have a secret software version that makes it work, cool. But on principle it doesn't work.

They're both plugged into CAN, it doesn't matter where they are plugged in. The ECU doesn't care where they're plugged in. I don't have any special software.

[B58]

BIMECU sent me a firmware to update the MHD ECA and it works now on BM3.

[lens]

Originally Posted by n55david

According to most people here bm3 doesn't do anything lol

A ton of people are extremely misinformed about BM3, it's like there's people spreading misinformation and lies about BM3 to further MHD sales or something.

[n55david]

Originally Posted by lens

A ton of people are extremely misinformed about BM3, it's like there's people spreading misinformation and lies about BM3 to further MHD sales or something.

Yeah I know.. its pretty hilarious

[AmuroRay]

Originally Posted by n55david

Yeah I know.. its pretty hilarious

You liking B58 life?

[n55david]

Originally Posted by AmuroRay

You liking B58 life?

Maybe if it was faster than the n55 was but it's not right now..
Overall it's okay but.. you know lol the f22 is a weird bs car.. has positives but lots of bmw cheaped out negatives versus the f30

[AmuroRay]

Originally Posted by n55david

Maybe if it was faster than the n55 was but it's not right now..
Overall it's okay but.. you know lol the f22 is a weird bs car.. has positives but lots of bmw cheaped out negatives versus the f30

So true it hurts

[n55david]

Originally Posted by AmuroRay

So true it hurts

I'm so disappointed with so much, cept the handling to be honest lol