2013 ZL1 Flex fuel - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Alqadif75 · 03-06-2019, 02:20 PM

Dears,

i have installed flex fuel kit into my 2013 ZL1,

I need a gauge or away that can read for me the percentage of E85,
And tills weather the flex fuel sensor is active or not

Any help will be highly appreciated.

Batmanntexas · 03-07-2019, 01:20 PM

The flex fuel kit that you have installed communicates directly with the ECU. You can run HP Tuners Scanner to monitor ethanol percentage, as well as EFI Live, and possibly other tuning platforms. If you don't have access to any of those, Aeroforce sells a gauge that will read ethanol percentage.

You could also use a digital voltmeter, one that has the ability to measure frequency, to ascertain whether or not your sensor is working correctly.

The sensor utilizes three wires: Vcc (12V/ignition), Vout (Sensor output), GND (battery ground).

By measuring frequency between the GND and Vout wires, you can determine if your sensor is working. The frequency window is 50-150Hz (50Hz=0% ethanol, 150Hz=100% ethanol.)

You could try to measure voltage, just know that it is a pulsed DC voltage, so you'd need a scope-type meter to see it accurately.

silversleeper · 03-07-2019, 02:23 PM

^ Part of having the sensor installed is also to be able to make use of it. I used HPtuners and it does show that I correctly put the white wire to the pin on the ECM. Because it reads output from the ECM to the OBDII. You did not mention having a proper tune for the e85. You need to change the fuel from no e85, and don't select virtual sensor (like my silverado had even though it is supposedly flex fuel) and do select the "sensor". So it enables real reading of the ethanol. The fuel and spark tables need to be filled IIRC they are empty with the factory tune. You want to take advantage of much more spark advance with more ethanol, and make sure you give it more fuel as ethanol increases. The stock fuel injectors and fuel pump can not provide enough fuel to run full e85 fuel even with a sensor and tune. It will run lean and possibly destroy your engine. I don't know how much of this you already knew but I'm trying to be helpful to you.
I'll check later today if my cheaper simple OBDII readers I got from amazon.com will read ethanol with their app on a smartphone.
Edit: I tried my "bluedriver" OBDII dongle and it's Iphone app. It says "vehicle not supported" under the ethanol option. I have a different OBDII dongle that uses only PC or Android app I'll try that but not now.

Dylan1214 · 03-08-2019, 05:25 AM

Here ya go, http://zeitronix.com/Products/ECA/ECA2.shtml You can buy just the gauge and wire it into your existing flex sensor

97ChameleonTA · 03-08-2019, 08:35 AM

Dashlogic works for reading ethanol percentage. I have mine displayed on the head unit.

beersngars · 03-08-2019, 01:42 PM

I have the HP tuners ngauge. Works well.

Alqadif75 · 03-10-2019, 01:14 PM

Thanks guys that was so helpfull

hammdo · 03-10-2019, 01:34 PM

Aeroforce interceptor works as well...

-Don

03-06-2019, 02:20 PM	#1
Alqadif75 Drives: Zl1 2013 Join Date: Feb 2019 Location: Doha qatar Posts: 8	2013 ZL1 Flex fuel Dears, i have installed flex fuel kit into my 2013 ZL1, I need a gauge or away that can read for me the percentage of E85, And tills weather the flex fuel sensor is active or not Any help will be highly appreciated.

03-07-2019, 01:20 PM	#2
Batmanntexas Drives: 2012 Camaro SS (2SS) Join Date: Aug 2012 Location: Stafford, VA Posts: 1,374 View My Garage	The flex fuel kit that you have installed communicates directly with the ECU. You can run HP Tuners Scanner to monitor ethanol percentage, as well as EFI Live, and possibly other tuning platforms. If you don't have access to any of those, Aeroforce sells a gauge that will read ethanol percentage. You could also use a digital voltmeter, one that has the ability to measure frequency, to ascertain whether or not your sensor is working correctly. The sensor utilizes three wires: Vcc (12V/ignition), Vout (Sensor output), GND (battery ground). By measuring frequency between the GND and Vout wires, you can determine if your sensor is working. The frequency window is 50-150Hz (50Hz=0% ethanol, 150Hz=100% ethanol.) You could try to measure voltage, just know that it is a pulsed DC voltage, so you'd need a scope-type meter to see it accurately. __________________ 745RWHP/634RWTQ on 93 @ 10psi 806/676 on E85 @ 10psi COTW 9/8/14

03-07-2019, 02:23 PM	#3
silversleeper Big Crow Drives: '13 ZL1 Join Date: Mar 2017 Location: California Posts: 1,486	^ Part of having the sensor installed is also to be able to make use of it. I used HPtuners and it does show that I correctly put the white wire to the pin on the ECM. Because it reads output from the ECM to the OBDII. You did not mention having a proper tune for the e85. You need to change the fuel from no e85, and don't select virtual sensor (like my silverado had even though it is supposedly flex fuel) and do select the "sensor". So it enables real reading of the ethanol. The fuel and spark tables need to be filled IIRC they are empty with the factory tune. You want to take advantage of much more spark advance with more ethanol, and make sure you give it more fuel as ethanol increases. The stock fuel injectors and fuel pump can not provide enough fuel to run full e85 fuel even with a sensor and tune. It will run lean and possibly destroy your engine. I don't know how much of this you already knew but I'm trying to be helpful to you. I'll check later today if my cheaper simple OBDII readers I got from amazon.com will read ethanol with their app on a smartphone. Edit: I tried my "bluedriver" OBDII dongle and it's Iphone app. It says "vehicle not supported" under the ethanol option. I have a different OBDII dongle that uses only PC or Android app I'll try that but not now. Last edited by silversleeper; 03-07-2019 at 04:38 PM.

03-08-2019, 05:25 AM	#4
Dylan1214 Drives: 2014 Camaro SS L99 Join Date: Nov 2017 Location: GrandRapids,Michigan Posts: 225 View My Garage	Here ya go, http://zeitronix.com/Products/ECA/ECA2.shtml You can buy just the gauge and wire it into your existing flex sensor __________________ MODS: GPI MAX Package ported and milled heads+(229/250,111 LSA),Johnson 2110 Lifters,BTR .660 Springs,CHE Trunnions,C5R chain,DSX Flex Fuel kit,LSA Injectors,ZL1 Fuel Pump,MAMO Ported MSD Intake manifold,BOWhite ported Throttle body,25% UDP,CAI Intake,Intake Scoop,Kooks 1 7/8 headers,Borla attak catback,Elite catch can,BMR Motor mounts,CircleD 5C 4000-4200 Torque converter,ADM trans cooler,Jannetty Trans dipstick,DSS Aluminum Driveshaft,3.91 Gears,Eaton TrueTrac,JRE Billet caps,BMR Trailing arms,BMR Toe rods,BMR rear sway bar,Pegasus Solid sub frame bushings,DSS 1,000HP Axles

03-08-2019, 08:35 AM	#5
97ChameleonTA Drives: 2013 ZL1 Convertible Join Date: Oct 2013 Location: Valrico, FL Posts: 515	Dashlogic works for reading ethanol percentage. I have mine displayed on the head unit. __________________ 2013 ZL1 Auto Convertible - BRM Best: 10.829@127.15 FI Interchiller, Roto-Fab CAI, Big Gulp & Res, 9.1/2.5 Pulleys, PB&S, DeatschWerks 1500cc, Fore triple pump, Pfadt LT's, RD HX, MT DR's New times to come with E85 2016 2SS Auto - Hyper Blue Metallic Roto-Fab CAI

03-08-2019, 01:42 PM	#6
beersngars Account Suspended Drives: 2012 ZL1 Join Date: May 2017 Location: Ohio Posts: 140	I have the HP tuners ngauge. Works well.

03-10-2019, 01:14 PM	#7
Alqadif75 Drives: Zl1 2013 Join Date: Feb 2019 Location: Doha qatar Posts: 8	Thanks guys that was so helpfull

03-10-2019, 01:34 PM	#8
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	Aeroforce interceptor works as well... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577