exhaust valve mod

Rbcmima · 08-25-2022, 02:54 PM

Just a quick question about the valve in general. Is the valve always closed in comfort/eco? Or does it still open after the car has warmed up?

Rdurty2 · 08-25-2022, 05:18 PM

Quote:

Originally Posted by Rbcmima

Just a quick question about the valve in general. Is the valve always closed in comfort/eco? Or does it still open after the car has warmed up?

It will stay closed. I believe it may open if you go full throttle though.

CarsAndGuitars · 08-25-2022, 06:21 PM

Quote:

Originally Posted by BigRon033

A better alternative would be to pull this fuse (F203) in the rear junction box (near the RH tail lamp under a carpet cover).

It only supplies the exhaust flap actuator. I've seen too many of those exhaust flap connectors corrode like crazy if they're exposed to water, so you'll be replacing the actuator and connector pins if you change your mind (or install the MPE later on).

OP/anyone - How do you get the flap to initially open before pulling the fuse? I started the car, switched to sport + and let it warm up.. but the valve never opened.

Red_sir · 08-25-2022, 09:45 PM

Quote:

Originally Posted by CarsAndGuitars

OP/anyone - How do you get the flap to initially open before pulling the fuse? I started the car, switched to sport + and let it warm up.. but the valve never opened.

I had to turn active sound to depending on driving mode to get the valve to open. It stayed closed if it was set to reduced.

Ruebarb · 08-26-2022, 07:40 AM

Quote:

Originally Posted by CarsAndGuitars

OP/anyone - How do you get the flap to initially open before pulling the fuse? I started the car, switched to sport + and let it warm up.. but the valve never opened.

Bimmer Link, will open the valve 100%

ryo- · 08-26-2022, 10:07 AM

Quote:

Originally Posted by Red_sir

I had to turn active sound to depending on driving mode to get the valve to open. It stayed closed if it was set to reduced.

isn't active sound the interior speaker noise? I've never had problems with my valves opening in sport+

CarsAndGuitars · 08-26-2022, 11:05 AM

Quote:

Originally Posted by Red_sir

I had to turn active sound to depending on driving mode to get the valve to open. It stayed closed if it was set to reduced.

Thanks will try

Quote:

Originally Posted by Ruebarb

Bimmer Link, will open the valve 100%

Yes, but Id prefer to see if I even like the valve open before buying that and adapter. I don't otherwise see much use for it to me

CarsAndGuitars · 08-26-2022, 01:52 PM

Quote:

Originally Posted by Red_sir

I had to turn active sound to depending on driving mode to get the valve to open. It stayed closed if it was set to reduced.

This works. I also had started the car in diagnostic mode - not sure if it mattered / will try without later.

But sure enough with "Depends on Driving Mode" selected and in Sport + the valve was opened.

So I am thinking, get it back to the valve opened state, pull fuse 203, then return ASD back to the Reduced setting -- and see if I like it or too much unnecessary noise

So seems BimmerLink not needed for any hardware method.

Rdurty2 · 08-26-2022, 02:41 PM

Quote:

Originally Posted by Ruebarb

Bimmer Link, will open the valve 100%

It will open it but you have to go into the app and open it every time you start the car

Ruebarb · 09-06-2022, 09:42 AM

Quote:

Originally Posted by Rdurty2

It will open it but you have to go into the app and open it every time you start the car

Not if you pull the fuse while it is 100% open.

CarsAndGuitars · 09-06-2022, 09:48 AM

I have since used Bimmercode and added the "Sporty" engine sound option. I haven't noticed if it retains it after the car is shut off, but I have it in a preset, so its easy to change.

That said, I find it has some drone when tooling around, so I will usually run in "Balanced" setting anyway. More significantly, turning ASD off is game-changing

allfitat55 · 09-06-2022, 09:14 PM

Quote:

Originally Posted by CarsAndGuitars

I have since used Bimmercode and added the "Sporty" engine sound option. I haven't noticed if it retains it after the car is shut off, but I have it in a preset, so its easy to change.

That said, I find it has some drone when tooling around, so I will usually run in "Balanced" setting anyway. More significantly, turning ASD off is game-changing

If you just do the coding mode even if you leave it in sporty mode the valve will close on engine shutdown and cold start in the morning. Once in gear the valve will open up.

If you pull the fuse the valve will stay open 100% of the time and override any head unit adjustment like sport or reduced.

HawksG42 · 12-21-2022, 06:29 PM

So I tried this today and while it’s kinda cool on start up and all….., after that it seem status quo. Not to mention, I took it on the interstate and tried ECO mode and because the valve was open it KILLED any fuel economy. The best I saw was 32ish. When the valve is closed I can average 38ish with peaks around 48mpg. I’m just going to wait until I buy a system so that I can have all the benefits from the engineers but make it rage when I want.

ryo- · 12-21-2022, 11:39 PM

I don't see how a valve in the exhaust can affect MPG... ?

Invisiblename · 12-22-2022, 12:59 AM

Quote:

Originally Posted by shonseb

If you have small enough fingers, you could do that. Otherwise, there are plastic fuse pullers
U-M Fuse Puller - Auto Automobile Fuse Puller Extraction Tool for Car Fuse (Yellow) Attractive and Fashion https://a.co/d/6pkY1AP

You could also use tweezers or very small needle nose pliers

There’s a fuse puller in the fuse box, you can see it in the left hand fuse box diagram in the earlier link

Invisiblename · 12-22-2022, 01:10 AM

By the way, all this talk about BimmerCode is irrelevant for those of us that have MY23 (ID8) cars, as it is not available at the moment (and may never be if rumours are correct that ID8 has effectively been ‘locked’ from BimmerCode mods)

Rdurty2 · 12-22-2022, 05:38 AM

Quote:

Originally Posted by ryo-

I don't see how a valve in the exhaust can affect MPG... ?

It wont

danallxt · 12-22-2022, 11:59 AM

Quote:

Originally Posted by Rdurty2

It wont

I let my car get really dirty, the added wind resistance cut my fuel mileage by 30 percent!!!

hyperpip · 12-25-2022, 12:52 PM

Quote:

Originally Posted by BigRon033

A better alternative would be to pull this fuse (F203) in the rear junction box (near the RH tail lamp under a carpet cover).

It only supplies the exhaust flap actuator. I've seen too many of those exhaust flap connectors corrode like crazy if they're exposed to water, so you'll be replacing the actuator and connector pins if you change your mind (or install the MPE later on).

G42 gen don’t include a fuse puller anymore do they?

Invisiblename · 12-25-2022, 02:09 PM

Quote:

Originally Posted by hyperpip

G42 gen don’t include a fuse puller anymore do they?

Does according to the fuse diagram shown earlier in this thread

hyperpip · 12-25-2022, 02:21 PM

Quote:

Originally Posted by Invisiblename

Does according to the fuse diagram shown earlier in this thread

Looks like that was for the F30. Just checked the G42 diagram and looked in my trunk today and did not find one. Disappointing

dasistato · 01-01-2023, 06:42 PM

Just got my modBMW from bulgaria and can confirm setting Engine sound to Sporty will start the car with both valves open in comfort etc.

My question is does having engine sound set to Sporty add that fake cabin noise from speakers? I had turned fake sound off before setting it to Sporty and drove around in Sport plus a bit, did not feel much difference in regards to sound in cabin? I haven't had a chance to drive around after enabling Sporty..

Any thoughts?

08-25-2022, 02:54 PM	#45
Rbcmima Enlisted Member 4 Rep 39 Posts Drives: G42 M240i Join Date: Jul 2022 Location: Monterey, CA iTrader: (0)	Just a quick question about the valve in general. Is the valve always closed in comfort/eco? Or does it still open after the car has warmed up?
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09-06-2022, 09:48 AM	#55
CarsAndGuitars Lieutenant 2069 Rep 544 Posts Drives: 2022 M240i Join Date: Mar 2022 Location: South FL iTrader: (0)	I have since used Bimmercode and added the "Sporty" engine sound option. I haven't noticed if it retains it after the car is shut off, but I have it in a preset, so its easy to change. That said, I find it has some drone when tooling around, so I will usually run in "Balanced" setting anyway. More significantly, turning ASD off is game-changing __________________ 2022 BMW M240i Portimao Gone: 2020 Genesis G70 3.3T \| 2018 Audi A5 SportBack \| 2015 Challenger Scat Pack \| 2011 Mustang V6 \| numerous others..
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12-21-2022, 06:29 PM	#57
HawksG42 CE560XL Pilot 53 Rep 91 Posts Drives: 2022 M240i Join Date: Dec 2022 Location: Gilbert, AZ iTrader: (0)	So I tried this today and while it’s kinda cool on start up and all….., after that it seem status quo. Not to mention, I took it on the interstate and tried ECO mode and because the valve was open it KILLED any fuel economy. The best I saw was 32ish. When the valve is closed I can average 38ish with peaks around 48mpg. I’m just going to wait until I buy a system so that I can have all the benefits from the engineers but make it rage when I want.
	Appreciate 0 Quote

12-21-2022, 11:39 PM	#58
ryo- First Lieutenant 251 Rep 355 Posts Drives: '22 MWM M240i Join Date: Feb 2022 Location: Central California iTrader: (0)	I don't see how a valve in the exhaust can affect MPG... ?
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12-22-2022, 01:10 AM	#60
Invisiblename Lieutenant 355 Rep 433 Posts Drives: M240i Join Date: Oct 2011 Location: UK iTrader: (0)	By the way, all this talk about BimmerCode is irrelevant for those of us that have MY23 (ID8) cars, as it is not available at the moment (and may never be if rumours are correct that ID8 has effectively been ‘locked’ from BimmerCode mods) __________________ M240i x-drive (Thundernight, 19" 893Ms, Cognac, Pro Pack, Adaptive, Sunroof)
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01-01-2023, 06:42 PM	#66
dasistato Private 45 Rep 87 Posts Drives: G42 M240i, E30 Join Date: Apr 2016 Location: VA iTrader: (0)	Just got my modBMW from bulgaria and can confirm setting Engine sound to Sporty will start the car with both valves open in comfort etc. My question is does having engine sound set to Sporty add that fake cabin noise from speakers? I had turned fake sound off before setting it to Sporty and drove around in Sport plus a bit, did not feel much difference in regards to sound in cabin? I haven't had a chance to drive around after enabling Sporty.. Any thoughts?
	Appreciate 0 Quote