e85 sensor w JB4 Auto Tuning N54?

Jay1101 · 09-12-2023, 05:36 PM

Hello, I have a N54 w Pure turbos, a jb4 bef (race fuel) and it runs e40ish.

My question is until now I have just been using an e85 calculator to guesstimate the amount of ethanol in my car but I want to install an ethanol sensor and have it connect to my jb4 so that it can autotune my car based on the ethanol percentage.

I've been looking around and I can't figure out if I can do that with the jb4/mhd bef and no port injection. Do I have to buy the fuel it kit or would spool street work? / Is that even possible or should I just install w bluetooth and keep it on the race or e85 map based on my percentage.

apexxx6789 · 10-03-2023, 10:50 AM

Fuel it ethanol analyzer with a MHD flex fuel map and JB4 map.

Check the JB4 forum for a DIY. I did find a fuel it video on integrating with JB4.

Works great for me map 7 E30-E85 or auto tune.

Jay1101 · 03-07-2024, 04:07 PM

Very delayed response but, I was just wondering since I already have the JB4 and their bluetooth adapter do I still need to purchase "Universal Bluetooth ethanol analyzer" on the Burger Motorsports website I don't have to add it and the price goes from $315 to $485.

I don't want to buy something I already have which is why I'm wondering

09-12-2023, 05:36 PM	#1
Jay1101 New Member 0 Rep 13 Posts Drives: 2007 335i Join Date: Dec 2020 Location: Rockville, MD iTrader: (0)	e85 sensor w JB4 Auto Tuning N54? Hello, I have a N54 w Pure turbos, a jb4 bef (race fuel) and it runs e40ish. My question is until now I have just been using an e85 calculator to guesstimate the amount of ethanol in my car but I want to install an ethanol sensor and have it connect to my jb4 so that it can autotune my car based on the ethanol percentage. I've been looking around and I can't figure out if I can do that with the jb4/mhd bef and no port injection. Do I have to buy the fuel it kit or would spool street work? / Is that even possible or should I just install w bluetooth and keep it on the race or e85 map based on my percentage.
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10-03-2023, 10:50 AM	#2
apexxx6789 Enlisted Member 0 Rep 32 Posts Drives: 335XI Join Date: Dec 2019 Location: Chicago IL iTrader: (0)	Fuel it ethanol analyzer with a MHD flex fuel map and JB4 map. Check the JB4 forum for a DIY. I did find a fuel it video on integrating with JB4. Works great for me map 7 E30-E85 or auto tune.
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03-07-2024, 04:07 PM	#3
Jay1101 New Member 0 Rep 13 Posts Drives: 2007 335i Join Date: Dec 2020 Location: Rockville, MD iTrader: (0)	Bluetooth Analyzer Needed? Very delayed response but, I was just wondering since I already have the JB4 and their bluetooth adapter do I still need to purchase "Universal Bluetooth ethanol analyzer" on the Burger Motorsports website I don't have to add it and the price goes from $315 to $485. I don't want to buy something I already have which is why I'm wondering
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