N54 Stock DME Flex Fuel

[NoGuru]

Thursday night and Friday morning E50 335is DCT, FBO
https://datazap.me/u/noguru/pull?log=0&data=3-21

https://datazap.me/u/noguru/and-pull?log=0&data=3-4-21

 

[NoGuru]

E47 from this morning 335is DCT, FBO https://datazap.me/u/noguru/warm-morning-e47?log=0&data=3-4-21

 

[NoGuru]

Am I the only one left in this thread?
E47, 59 degrees outside, 335is DCT, FBO https://datazap.me/u/noguru/tuesday-59-degrees-outside-e47?log=0&data=3-21

 

[Tuningservice.no]

I'm still here!

My e%-gauge shows a solid 100% and gives me max boost now.
Checked all connections but still a solid 100% with only pump 93 in the tank.

Wish it showed the dme 0% when something is wrong instead..

 

[Jake@MHD]

I'm still here!

My e%-gauge shows a solid 100% and gives me max boost now.
Checked all connections but still a solid 100% with only pump 93 in the tank.

Wish it showed the dme 0% when something is wrong instead..

Hi, are you using an OTS flash or are you getting a pro-tune? What does ethanol voltage log as?

 

[Tuningservice.no]

Custom tune. Don't have the car here now so can't check voltage atm.

Here are my logs. First just startup, then 1.01 with ethanol % spikes, then 1.01 v2 with e% at a constant 100%

https://datazap.me/u/jagermeister1m/

 

[Jake@MHD]

Custom tune. Don't have the car here now so can't check voltage atm.

Here are my logs. First just startup, then 1.01 with ethanol % spikes, then 1.01 v2 with e% at a constant 100%

https://datazap.me/u/jagermeister1m/

Who is tuning it? Also, please include the voltage in the next logs, it is required for troubleshooting. Thanks!

 

[Tuningservice.no]

It's Chris @ Motiv.
Havent had an reply in mail in 1 week.

Will include voltage in a log when i get off work tomorrow. Planned to track the car next weekend so getting a bit nervous.

 

[Hill'n'toe]

Am I the only one left in this thread?
E47, 59 degrees outside, 335is DCT, FBO https://datazap.me/u/noguru/tuesday-59-degrees-outside-e47?log=0&data=3-21

Still here too.
I'm currently in tuning phase with my tuner, everything works great. On E55 right now and I hope soon E85 to make it totaly flexfuel

 

[Tuningservice.no]

Bo

Who is tuning it? Also, please include the voltage in the next logs, it is required for troubleshooting. Thanks!

Voltage shows a stable 4.06v when idling.
When disconnecting ground for the ECA it jumps between 4 and 5 volts.
Still shows 100% e% in both cases.
Same thing if i disconnect the continental sensor.

2 logs with and without ground:

https://datazap.me/u/jagermeister1m/101-v3?log=0&data=3-22

 

[fmorelli]

Who is tuning it?

http://tuningservice.no/ is a fair assumption.

Filippo

 

[Jake@MHD]

Voltage shows a stable 4.06v when idling.
When disconnecting ground for the ECA it jumps between 4 and 5 volts.
Still shows 100% e% in both cases.
Same thing if i disconnect the continental sensor.

2 logs with and without ground:

https://datazap.me/u/jagermeister1m/101-v3?log=0&data=3-22

The ECA will output 0.5-3V for 0-100% Ethanol. Any voltage greater than 3V is an error, either wiring issue, wire disconnected, short circuit, bad ground, or perhaps bad ECA or continental sensor. You will need to work with Chris / Motiv to resolve. You can add me in the email thread if you like and I'll help if necessary.

http://tuningservice.no/ is a fair assumption.

Filippo

Would be a wrong assumption

 

[Tuningservice.no]

The ECA will output 0.5-3V for 0-100% Ethanol. Any voltage greater than 3V is an error, either wiring issue, wire disconnected, short circuit, bad ground, or perhaps bad ECA or continental sensor. You will need to work with Chris / Motiv to resolve. You can add me in the email thread if you like and I'll help if necessary.



Would be a wrong assumption

Any chance i can ohm the e-sensor to check. And how can the eca be analyzed?
All cables look good.

 

[fmorelli]

I believe this is right but verify as I'm doing this from my phone.

Filippo

Connector: https://www.mouser.com/ProductDetai...QhJFWuicCtCHDk/8jxfTMkyt7SU/140kptxhQ7bBCuQ==
Pins: https://www.mouser.com/ProductDetai...eMQ0isUnDdXIsv%2bb1BwDgiAG9YbcbyVIffguW7slw==
Seals: https://www.mouser.com/ProductDetai...Nz6WTu0dj6Uco2wKDqNG7kPbMWsiQzrySnouuUftWjA==

 

[Hill'n'toe]

Hi,

I'm currently tuning my DME with my tuner, and he has done a good work from pump gas to E60. Now I want to go full E85. Friday, My tank was almost empty with about 5 litres of mixture in it, 64% of ethanol according to ECA, I filled up 3/4 of the tank with E85 and the ethanol rate increased to 68%. Next day, I did the same operation, 3/4 of the tank with E85, and the rate is still 68%. So, Is E85 rather E70 in my country ? Or Is the ECA badly calibrated ?

Thanks

 

[Tuningservice.no]

Hi,

I'm currently tuning my DME with my tuner, and he has done a good work from pump gas to E60. Now I want to go full E85. Friday, My tank was almost empty with about 5 litres of mixture in it, 64% of ethanol according to ECA, I filled up 3/4 of the tank with E85 and the ethanol rate increased to 68%. Next day, I did the same operation, 3/4 of the tank with E85, and the rate is still 68%. So, Is E85 rather E70 in my country ? Or Is the ECA badly calibrated ?

Thanks

Probably low E% on your pump.
You know you can easily measure e% in your fuel? Just google or youtube it.

 

[Jake@MHD]

Any chance i can ohm the e-sensor to check. And how can the eca be analyzed?
All cables look good.

This should be resolved with Chris / Motiv via email. They handle all hardware support and do not check this forum regularly.

Hi,

I'm currently tuning my DME with my tuner, and he has done a good work from pump gas to E60. Now I want to go full E85. Friday, My tank was almost empty with about 5 litres of mixture in it, 64% of ethanol according to ECA, I filled up 3/4 of the tank with E85 and the ethanol rate increased to 68%. Next day, I did the same operation, 3/4 of the tank with E85, and the rate is still 68%. So, Is E85 rather E70 in my country ? Or Is the ECA badly calibrated ?

Thanks

Looks like the pump you are getting it from is only ~E70. Not like it really matters, E70 is more than enough to max the power potential of stock turbos (and most all other turbos). The main benefit of people wanting to run "E85" is that they don't have to blend at the pump w/ 91-93oct. You are fine, and have less strain on your fuel system

 

[Tuningservice.no]

This should be resolved with Chris / Motiv via email. They handle all hardware support and do not check this forum regularly.

Yeah just sucks to wait days between email answers while having a car i cannot use in the middle of the summer...

But if i understand you correctly, it should be a easy fix for Chris to set 0% ethanol in the map when voltage is out of range (under/over 0,5-3v) in stead of 100% ethanol?

So i at least can use the car with pump gasoline until we can find the issue.

 

[fmorelli]

I would actually wonder about what a safe setting would be if the sensor is out of spec.

Filippo

 

[Tuningservice.no]

0% It would get too little fuel if there is ethanol in the tank, but boost/ign will also be at a minimum.
At least you can use the car as normal on pump fuel with this setting.

100% ethanol would give way too much fuel, boost, ign all the time.