Zeitronix Flex Fuel Sensor / ECS Boost Tap / P3 Gauge Installed

**GRUMPY-S4** · 02-07-2016 05:09 PM

**GRUMPY-S4** · 02-07-2016 05:12 PM

Thanks to AndThen!

**jl87** · 02-07-2016 05:13 PM

Looks good man!

**Tod** · 02-07-2016 05:16 PM

Looks nice!

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**14S4GWM** · 02-07-2016 05:19 PM

Nice job, any issues with the vent while installing the gauge?

**GRUMPY-S4** · 02-07-2016 05:22 PM

Originally Posted by 14S4GWM

Nice job, any issues with the vent while installing the gauge?

Hardest part was getting trim off and the lil plastic cover for the cable behind the vent. (Lil black thing). We ended up not putting it back as it seems pointless.

The flex fuel sensor was a lil tedious because of the damn clamps Audi uses on the fuel lines

**GRUMPY-S4** · 02-07-2016 05:23 PM

Painters tape goes a long way for the Vent!

**BlownOne** · 02-07-2016 05:41 PM

Where did you pull power from for the sensor/gauge?

**GRUMPY-S4** · 02-07-2016 05:56 PM

Originally Posted by BlownOne

Where did you pull power from for the sensor/gauge?

Power for Gauge comes from ODB2.

Power for sensor since the goal is for it to be on only when car is on... Pulled from ESC fuse.

**Shantb13** · 02-07-2016 06:07 PM

I have the same set up ;)

**GRUMPY-S4** · 02-07-2016 06:16 PM

Originally Posted by Shantb13

I have the same set up ;)

Its amazing!!!

**RWD2quattro** · 02-07-2016 06:26 PM

Nice job on install.

**mrmomo313** · 02-07-2016 06:57 PM

Very cool. Prepping for full e85 or just wanted it for your 93/e85 mixes?

**GRUMPY-S4** · 02-07-2016 06:57 PM

**GRUMPY-S4** · 02-07-2016 07:02 PM

Originally Posted by mrmomo313

Very cool. Prepping for full e85 or just wanted it for your 93/e85 mixes?

Prepping!!!!!

Will see if I need the HPFP upgrade and that will be next step

**GRUMPY-S4** · 02-07-2016 07:15 PM

Thinking I should route the harness along the fuel line

**jran76** · 02-07-2016 07:50 PM

Originally Posted by GRUMPY-S4

Damn, the intake looks good. Must be the install.

**GRUMPY-S4** · 02-07-2016 07:50 PM

Originally Posted by jran76

Damn, the intake looks good. Must be the install.

Its does!!! Thanks to you!

**Whitee** · 02-07-2016 08:32 PM

Excuse me for my ignorance but can you explain the benefit of the fuel sensor? Is this just so you know what percentage ethanol the fuel you're using is? Or does this allot you to run e85 only?

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**14S4GWM** · 02-07-2016 08:35 PM

Originally Posted by Whitee

Excuse me for my ignorance but can you explain the benefit of the fuel sensor? Is this just so you know what percentage ethanol the fuel you're using is? Or does this allot you to run e85 only?

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Just for you my friend compliments of google

http://www.zeitronix.com/Products/ECA/ECA.shtml

**Chandler** · 02-07-2016 09:10 PM

Originally Posted by Whitee

Excuse me for my ignorance but can you explain the benefit of the fuel sensor? Is this just so you know what percentage ethanol the fuel you're using is? Or does this allot you to run e85 only?

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It would just tell you the contents. You would have to select/ modify your tune based on your findings. IE, you are running a full E85 tune yet you got a HORRIBLE batch and it is only 55%. The recommendation here would be to use a map switcher and run a tune for E60 or if you have a 93/E85 mixed tune. The ECU will adapt somewhat, but it can only compensate so much.

**Whitee** · 02-07-2016 09:11 PM

Originally Posted by 14S4GWM

Just for you my friend compliments of google

http://www.zeitronix.com/Products/ECA/ECA.shtml

I read this but what I gathered was it was just a measurement tool. My question is....does this have anything to do with allowing you to run 100% e85 or does that require a hpfp

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**UkuRiSh** · 02-07-2016 09:15 PM

I used on my A4 this brand and cheaper too, can display on smartphone

http://flexconverter.com/

**GRUMPY-S4** · 02-07-2016 10:14 PM

Originally Posted by Whitee

Excuse me for my ignorance but can you explain the benefit of the fuel sensor? Is this just so you know what percentage ethanol the fuel you're using is? Or does this allot you to run e85 only?

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Its just to know what percentage of ethanol I am running. Just cUse it says E85... It rarely is.

**Hofahome** · 02-07-2016 10:15 PM

Originally Posted by UkuRiSh

I used on my A4 this brand and cheaper too, can display on smartphone

http://flexconverter.com/

Oh sweet! I'd like to know more about how itis installed. Kudos for building that badass twincharged setup too.

**GRUMPY-S4** · 02-07-2016 10:15 PM

Originally Posted by Whitee

I read this but what I gathered was it was just a measurement tool. My question is....does this have anything to do with allowing you to run 100% e85 or does that require a hpfp

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The Sensor doesnt bypass the need for the hpfp upgrade

**GRUMPY-S4** · 02-07-2016 10:17 PM

Originally Posted by UkuRiSh

I used on my A4 this brand and cheaper too, can display on smartphone

http://flexconverter.com/

Does their sensor output 0-5V????

**Chandler** · 02-07-2016 10:20 PM

Originally Posted by GRUMPY-S4

The Sensor doesnt bypass the need for the hpfp upgrade

+1
The B8 will need a HPFP upgrade to support the pressure needed to transport the e85 to the injectors. The injectors can handle the increased demand for fuel, the pump can't. Sillyrabit Motorsports, Solomotorsports have confirmed this per their tuning runs. I assume APR and GIAC who both have tested E85 tunes have had the same findings.

**GRUMPY-S4** · 02-08-2016 06:20 AM

Originally Posted by Chandler

+1
The B8 will need a HPFP upgrade to support the pressure needed to transport the e85 to the injectors. The injectors can handle the increased demand for fuel, the pump can't. Sillyrabit Motorsports, Solomotorsports have confirmed this per their tuning runs. I assume APR and GIAC who both have tested E85 tunes have had the same findings.

The question Ive seen tossed around is does the 8.5 pump have enough juice

**Mat@1975** · 02-08-2016 06:57 AM

Nice Work GRUMPY !

Did you had to make a special part to attach the fuel sensor ? Looks verry clean !

I am verry interrested by this sensor. Verry helpfull with E85 mixes and, later, to know if a true E85 tune can be loaded. (based on the minimal acceptable value given by the tuner, ie. E70 i remember, for existing tunes)

BR

MAt

**UkuRiSh** · 02-08-2016 07:52 AM

Originally Posted by GRUMPY-S4

Does their sensor output 0-5V????

Yes! optional 0-5V you can use and connect to any gauges or some cars to the ECU.

**GRUMPY-S4** · 02-08-2016 07:58 AM

Originally Posted by UkuRiSh

Yes! optional 0-5V you can use and connect to any gauges or some cars to the ECU.

So the tube that says "bluetooth" is the analyzer that outputs the 0-5 volt signal? 0 being 0% and 5 being 100% Ethanol?

**Vogz** · 02-08-2016 09:15 AM

Originally Posted by GRUMPY-S4

So the tube that says "bluetooth" is the analyzer that outputs the 0-5 volt signal? 0 being 0% and 5 being 100% Ethanol?

It looks to me like the Continental sensor is the part that outputs the signal to the bluetooth module. Then the bluetooth module sends the data to your phone.

**GRUMPY-S4** · 02-08-2016 09:17 AM

Originally Posted by Vogz

It looks to me like the Continental sensor is the part that outputs the signal to the bluetooth module. Then the bluetooth module sends the data to your phone.

I dont think you can feed the output of the sensor to a P3 gauge. Seems like this setup is married to the Bluetooth module and to displaying on phone???

**skiracerblah** · 02-08-2016 09:52 AM

Originally Posted by 14S4GWM

Just for you my friend compliments of google

http://www.zeitronix.com/Products/ECA/ECA.shtml

If you click on the link on this page for "ECA Youtube Video", that's me and my Evo.... I helped Zeitronix develop this back in 2008ish and was the first one to have it installed

**infinkc** · 02-08-2016 09:58 AM

Originally Posted by GRUMPY-S4

I dont think you can feed the output of the sensor to a P3 gauge. Seems like this setup is married to the Bluetooth module and to displaying on phone???

the sensor itself has a 0-5v output, you just need to tap into it before it hits the bt module. The conti sensor is a OEM replacement, which the zeitronix one was based on, they just branded it and marked up the price.

**GRUMPY-S4** · 02-08-2016 10:00 AM

Originally Posted by infinkc

the sensor itself has a 0-5v output, you just need to tap into it before it hits the bt module.

If thats the case... Why would I need the BT module?

Im still skeptical that just the sensor with no analyzer would net the same results as the Zeitronix

**infinkc** · 02-08-2016 10:07 AM

Originally Posted by GRUMPY-S4

If thats the case... Why would I need the BT module?

Im still skeptical that just the sensor with no analyzer would net the same results as the Zeitronix

you dont need the bt module, only the sensor and a harness. The p3 guage you use as the analyzer, you set it to read the 0-5v input and calibrate it to 0-100%.

**GRUMPY-S4** · 02-08-2016 10:08 AM

Originally Posted by infinkc

you dont need the bt module, only the sensor and a harness. The p3 guage you use as the analyzer, you set it to read the 0-5v input and calibrate it to 0-100%.

If this works its much cheaper than Zeitronix