APE Multi-Gauge User manual
Warranty
Alternative Performance Engineering, LLC offers a one-year manufacturer’s warranty from the date of purchase.
The warranty applies only to the Multi-Gauge module, the flex fuel sensor, the included wiring harness, and their
functionality. Always read the instructions in this user manual before attempting to install or use the flex fuel
power module.
The warranty does not cover damages caused by improper installation by the buyer or by the buyer’s agent, or
if the product has been damaged by wear that is not caused by normal use or by a manufacturing defect. Any
modification done to the flex fuel power module or wiring harness without the consent of the manufacturer
voids the guarantee.
If the product has a fault that can be regarded as a result of a faster than normal wear or a result of a
manufacturing defect, the manufacturer will provide the buyer with a new product or repair the faulty product.
The manufacturer has the right to redeem the faulty product if it is replaced by a new one. In no event shall this
warranty exceed the original purchase price of the flex fuel power module nor shall Alternative Performance
Engineering be responsible for special, incidental or consequential damages or cost incurred due to the failure
of this product.
The manufacturer reserves the rights to any modifications, expansions, attachments, or improvements made by
customer.
The use of the flex fuel power module happens at the user’s own risk. The manufacturer commits only to make
up for damage caused to the flex fuel power module, the accompanied wiring harness, or accessories as covered
by the guarantee.
The manufacturer does not make up for damage caused to the car by the use of ethanol containing fuel or the
use of the flex fuel power module. Neither does the manufacturer make up for damage caused by the installation
to the product, the installation’s target or the person carrying out the installation, if the installation is carried out
by the customer or by customer’s agent.
Returns
If you are experiencing an issue with your Multi-Gauge module, please contact us so we can help resolve it. If
you wish to return the system, all components must be returned in original packaging, in resalable condition.
The flex fuel power module will be inspected for damage prior to any refund being issued. All returns must be
made within 30 days from the date of purchase.
Contact Us
Instragram/Facebook: @apeflexfuel
Email: support@APEFlexFuel.com
Web: www.APEFlexFuel.com
ALTERNATIVE PERFORMANCE ENGINEERING, LLC
San Diego
Table of Contents
Introduction .................................................................................................. 1
Getting Started ............................................................................................. 2
Vehicle Health .......................................................................................... 2
What’s Included ........................................................................................ 2
Installation .................................................................................................... 3
Flex Sensor Installation ............................................................................. 3
Wire Harness Installation ......................................................................... 4
Gauge 1 &2 Installation ............................................................................ 5
iOS/Android phone application .................................................................... 6
App Dashboard Screen ............................................................................. 7
App Data-Logging Screen ....................................................................... 10
App Fuel Calculator Screen ................................................................... 11
App Settings Screen .............................................................................. 12
Warranty ................................................................................................... 14
13
App Settings Screen
Introduction
The Alternative Performance Engineering Multi-Gauge is the most advanced
Ethanol Content sensor available in the market today. The Multi-Gauge also
has two generic 5V sensor inputs that can be used for additional sensors like
a wideband or map sensor. All of this data can be monitored and data-logged
wirelessly via Bluetooth Low Energy on our Android or iOS application.
The Multi-Gauge also provides a raw ethanol sensor output with built in 10K
pullup resistor to 5V so you can use it on a vehicle that already has a flex
sensor.
12
1
Hit the Save
button after any
changes are made
Display Name is
what is shown
when Gauge is in
the Center.
Abbreviation is
what is used
when Gauge is in
the corner.
Can turn off
Gauge 1 Display
on dashboard if
not used
Displays Module
Firmware and
App Version
The Color ranges
for when this
gauge is selected
for the center can
be defined here.
A visible warning
range can be set
for each gauge
here.
Settings Tab
Pass Key not
used for Multi-
Gauge
Changes Gauge
Trim from silver
to black
How you enter the values in the 0V and 5V boxes will be how the numbers are
displayed on the Gauges. For example, of you put 7.35 and 29.4, the gauge
will display 2 decimal points. If however you put 7.4 and 29.4 the gauge will
only display one decimal point, and if you put 7 and 29 then the gauge will not
display a decimal point. You can also enter 0% and 100% if you want it display
the number as a percentage.
Gauge scaling
values, see below
for formatting
rules.
Getting Started
Vehicle Health
It is important that your vehicle is in proper working order and has been well
maintained. The fuel pump and the emissions system are important for
proper vehicle operation. The fuel pump pressure and flow should be within
the standards set by the vehicle manufacturer. Make sure that all other
vehicle sensors are in proper working condition. After confirming the
compliance of the data above, you may proceed with the installation.
Change the oil, oil filter and fuel filter since ethanol will act as a cleaner. It is
recommended to change your oil between 500 and 1000 miles after the
module installation and E85 usage. Change the fuel filter around 1000 miles
after E85 usage. From then on, the changes should be made at manufacturers
recommended intervals.
What’s Included
Check to make sure you have all of the necessary components in your kit:
• Multi-Gauge Module
• Flex Fuel Sensor
• Wiring Harness
• Quick Connect Fuel Fittings and hose clamps
• 15” of 5/16” E85 compatible high pressure fuel line
• 4 fuel injection hose clamps
• Flex Fuel badge
App Fuel Calculator Screen
The fuel calculator can show you how to mix Ethanol with Gasoline to
achieve a desired Ethanol mixture, for example E65. You can use the
datalogging screen to help determine if you need to lower your Ethanol
mixture.
As a reference, for every 10 percent increase in Ethanol will increase the
pulse width extension by 4%. So, at E50 the module is adding 16% more
fuel , and at E60 the module is adding 20% more fuel.
2
11
Fuel Calculator Tab
Enter the capacity of your
fuel tank here
Enter the current Ethanol
level here, app will auto
fill this field, but the user
can overwrite.
Enter your desired
Ethanol level here.
Enter the Ethanol levels
for Gas and E85 here
Set your current fuel tank
level here, and the app
will recommend the
Gas/E85 mix to achieve
the desired Ethanol level
App Data-Logging Screen
Rotating your device to the right will show the data logging screen. You can select
any point on the graph, and it will show you the values at that point. You can
pause, and zoom in and pan to a section, and hitting save will copy a screenshot to
your photos. The data-logging has a limited buffer, so you should hit pause if you
want to look at a specific event that just happened.
Installation
Flex Sensor Installation
The picture below is representative of the factory configuration of your
vehicle. You will have fuel lines that come from the gas tank and go
through a fuel filter before reaching the fuel rail that feeds the fuel
injectors. The factory ECU is connected to each individual fuel injector
through the factory wiring harness. There may
or may not be a return line.
10
3
1) Install Flex Fuel Sensor anywhere in the fuel lines. A good place is at
the fuel filter. Make sure the Flex Fuel Sensor connector on the
Multi-Gauge wiring harness is able to reach the sensor.
3) Make sure to secure
the sensor. Too much
vibration will cause
sensor errors.
2) You can use the supplied fuel line adapters to connect the Flex Fuel
sensor to the fuel filter. If the adapters are the wrong size, you can
simply use the rubber fuel line and hose clamps.
Wire Harness Installation
App Dashboard Screen
If you are on the dashboard screen and rotate your phone counter-
clockwise, then you the gauges will rotate to a landscape view.
If you are on the dashboard screen and rotate your phone clockwise, then
you will be taken to the data-logging screen.
4
9
6) Connect the Yellow 12V power wire to a switched 12V power
source on your vehicle.
7) The purple wire outputs the raw signal from the Flex Fuel
Sensor. The Multi-Gauge Module has a built in 10K pullup to
5V on this signal. This can be used to connect to your ECU if
your ECU.
4) Plug the flex fuel sensor
connector from the Multi-
Gauge wiring harness into
the Flex Fuel Sensor.
5) Connect the ground
terminal to a suitable
ground in your vehicle.
App Dashboard Screen
Selecting either Gauge 1 or 2 in the top corners will swap that gauge into the
center and put the Ethanol Content in the corner. If you set the warning
range in the settings tab and your gauge hits that range, the gauge will turn
red.
Gauge 1 & 2 Installation
8
5
8) The Red and Black wires can be used to provide power to 5V
sensors.
9) 0V-5V sensor outputs can be connected to the Green wire for
Gauge 1 and the Orange wire for Gauge 2.
10) The Purple wire is the raw Flex Fuel Sensor output with a 10K
pullup to 5V on the module. This can be connected directly
to an ECU
11) Plug the Multi-Gauge Module into the harness and mount in
your car.
12) Now it is time to start up the APE app on your phone.
iOS / Android App
We have developed both an iPhone app and an Android app. In order to be
notified of updates and availability of the apps, please send your name, serial
number and email address to:
sales@APEFlexFuel.com
You can install the APE X85 from either the Apple App Store or the Google
Play Store.
Open the app and connect to your device, you should see your serial number
listed as something like “APE-MG-10001”. Select your device and hit
“Connect” to get to the main dashboard of the app. The app may ask for
permissions to access the Bluetooth device, please allow.
App Dashboard Screen
6
7
Current value read
by Gauge 2 input.
It is 0.0 to 5.0 by
default, the scaling
information needs
to be entered in
the settings tab.
Selecting this area
Returns to the
Connection screen
Displays Ethanol
Content read by
fuel sensor
Current value read
by Gauge 1 input.
It is 0.0 to 5.0 by
default, the scaling
information needs
to be entered in
the settings tab.
Displays the Fuel
temperature
Dashboard Tab
iOS / Android App
We have developed both an iPhone app and an Android app. In order to be
notified of updates and availability of the apps, please send your name, serial
number and email address to:
sales@APEFlexFuel.com
You can install the APE X85 from either the Apple App Store or the Google
Play Store.
Open the app and connect to your device, you should see your serial number
listed as something like “APE-MG-10001”. Select your device and hit
“Connect” to get to the main dashboard of the app. The app may ask for
permissions to access the Bluetooth device, please allow.
App Dashboard Screen
6
7
Current value read
by Gauge 2 input.
It is 0.0 to 5.0 by
default, the scaling
information needs
to be entered in
the settings tab.
Selecting this area
Returns to the
Connection screen
Displays Ethanol
Content read by
fuel sensor
Current value read
by Gauge 1 input.
It is 0.0 to 5.0 by
default, the scaling
information needs
to be entered in
the settings tab.
Displays the Fuel
temperature
Dashboard Tab
App Dashboard Screen
Selecting either Gauge 1 or 2 in the top corners will swap that gauge into the
center and put the Ethanol Content in the corner. If you set the warning
range in the settings tab and your gauge hits that range, the gauge will turn
red.
Gauge 1 & 2 Installation
8
5
8) The Red and Black wires can be used to provide power to 5V
sensors.
9) 0V-5V sensor outputs can be connected to the Green wire for
Gauge 1 and the Orange wire for Gauge 2.
10) The Purple wire is the raw Flex Fuel Sensor output with a 10K
pullup to 5V on the module. This can be connected directly
to an ECU
11) Plug the Multi-Gauge Module into the harness and mount in
your car.
12) Now it is time to start up the APE app on your phone.
Wire Harness Installation
App Dashboard Screen
If you are on the dashboard screen and rotate your phone counter-
clockwise, then you the gauges will rotate to a landscape view.
If you are on the dashboard screen and rotate your phone clockwise, then
you will be taken to the data-logging screen.
4
9
6) Connect the Yellow 12V power wire to a switched 12V power
source on your vehicle.
7) The purple wire outputs the raw signal from the Flex Fuel
Sensor. The Multi-Gauge Module has a built in 10K pullup to
5V on this signal. This can be used to connect to your ECU if
your ECU.
4) Plug the flex fuel sensor
connector from the Multi-
Gauge wiring harness into
the Flex Fuel Sensor.
5) Connect the ground
terminal to a suitable
ground in your vehicle.
App Data-Logging Screen
Rotating your device to the right will show the data logging screen. You can select
any point on the graph, and it will show you the values at that point. You can
pause, and zoom in and pan to a section, and hitting save will copy a screenshot to
your photos. The data-logging has a limited buffer, so you should hit pause if you
want to look at a specific event that just happened.
Installation
Flex Sensor Installation
The picture below is representative of the factory configuration of your
vehicle. You will have fuel lines that come from the gas tank and go
through a fuel filter before reaching the fuel rail that feeds the fuel
injectors. The factory ECU is connected to each individual fuel injector
through the factory wiring harness. There may
or may not be a return line.
10
3
1) Install Flex Fuel Sensor anywhere in the fuel lines. A good place is at
the fuel filter. Make sure the Flex Fuel Sensor connector on the
Multi-Gauge wiring harness is able to reach the sensor.
3) Make sure to secure
the sensor. Too much
vibration will cause
sensor errors.
2) You can use the supplied fuel line adapters to connect the Flex Fuel
sensor to the fuel filter. If the adapters are the wrong size, you can
simply use the rubber fuel line and hose clamps.
Getting Started
Vehicle Health
It is important that your vehicle is in proper working order and has been well
maintained. The fuel pump and the emissions system are important for
proper vehicle operation. The fuel pump pressure and flow should be within
the standards set by the vehicle manufacturer. Make sure that all other
vehicle sensors are in proper working condition. After confirming the
compliance of the data above, you may proceed with the installation.
Change the oil, oil filter and fuel filter since ethanol will act as a cleaner. It is
recommended to change your oil between 500 and 1000 miles after the
module installation and E85 usage. Change the fuel filter around 1000 miles
after E85 usage. From then on, the changes should be made at manufacturers
recommended intervals.
What’s Included
Check to make sure you have all of the necessary components in your kit:
• Multi-Gauge Module
• Flex Fuel Sensor
• Wiring Harness
• Quick Connect Fuel Fittings and hose clamps
• 15” of 5/16” E85 compatible high pressure fuel line
• 4 fuel injection hose clamps
• Flex Fuel badge
App Fuel Calculator Screen
The fuel calculator can show you how to mix Ethanol with Gasoline to
achieve a desired Ethanol mixture, for example E65. You can use the
datalogging screen to help determine if you need to lower your Ethanol
mixture.
As a reference, for every 10 percent increase in Ethanol will increase the
pulse width extension by 4%. So, at E50 the module is adding 16% more
fuel , and at E60 the module is adding 20% more fuel.
2
11
Fuel Calculator Tab
Enter the capacity of your
fuel tank here
Enter the current Ethanol
level here, app will auto
fill this field, but the user
can overwrite.
Enter your desired
Ethanol level here.
Enter the Ethanol levels
for Gas and E85 here
Set your current fuel tank
level here, and the app
will recommend the
Gas/E85 mix to achieve
the desired Ethanol level
App Settings Screen
Introduction
The Alternative Performance Engineering Multi-Gauge is the most advanced
Ethanol Content sensor available in the market today. The Multi-Gauge also
has two generic 5V sensor inputs that can be used for additional sensors like
a wideband or map sensor. All of this data can be monitored and data-logged
wirelessly via Bluetooth Low Energy on our Android or iOS application.
The Multi-Gauge also provides a raw ethanol sensor output with built in 10K
pullup resistor to 5V so you can use it on a vehicle that already has a flex
sensor.
12
1
Hit the Save
button after any
changes are made
Display Name is
what is shown
when Gauge is in
the Center.
Abbreviation is
what is used
when Gauge is in
the corner.
Can turn off
Gauge 1 Display
on dashboard if
not used
Displays Module
Firmware and
App Version
The Color ranges
for when this
gauge is selected
for the center can
be defined here.
A visible warning
range can be set
for each gauge
here.
Settings Tab
Pass Key not
used for Multi-
Gauge
Changes Gauge
Trim from silver
to black
How you enter the values in the 0V and 5V boxes will be how the numbers are
displayed on the Gauges. For example, of you put 7.35 and 29.4, the gauge
will display 2 decimal points. If however you put 7.4 and 29.4 the gauge will
only display one decimal point, and if you put 7 and 29 then the gauge will not
display a decimal point. You can also enter 0% and 100% if you want it display
the number as a percentage.
Gauge scaling
values, see below
for formatting
rules.
Table of Contents
Introduction .................................................................................................. 1
Getting Started ............................................................................................. 2
Vehicle Health .......................................................................................... 2
What’s Included ........................................................................................ 2
Installation .................................................................................................... 3
Flex Sensor Installation ............................................................................. 3
Wire Harness Installation ......................................................................... 4
Gauge 1 &2 Installation ............................................................................ 5
iOS/Android phone application .................................................................... 6
App Dashboard Screen ............................................................................. 7
App Data-Logging Screen ....................................................................... 10
App Fuel Calculator Screen ................................................................... 11
App Settings Screen .............................................................................. 12
Warranty ................................................................................................... 14
13
Warranty
Alternative Performance Engineering, LLC offers a one-year manufacturer’s warranty from the date of purchase.
The warranty applies only to the Multi-Gauge module, the flex fuel sensor, the included wiring harness, and their
functionality. Always read the instructions in this user manual before attempting to install or use the flex fuel
power module.
The warranty does not cover damages caused by improper installation by the buyer or by the buyer’s agent, or
if the product has been damaged by wear that is not caused by normal use or by a manufacturing defect. Any
modification done to the flex fuel power module or wiring harness without the consent of the manufacturer
voids the guarantee.
If the product has a fault that can be regarded as a result of a faster than normal wear or a result of a
manufacturing defect, the manufacturer will provide the buyer with a new product or repair the faulty product.
The manufacturer has the right to redeem the faulty product if it is replaced by a new one. In no event shall this
warranty exceed the original purchase price of the flex fuel power module nor shall Alternative Performance
Engineering be responsible for special, incidental or consequential damages or cost incurred due to the failure
of this product.
The manufacturer reserves the rights to any modifications, expansions, attachments, or improvements made by
customer.
The use of the flex fuel power module happens at the user’s own risk. The manufacturer commits only to make
up for damage caused to the flex fuel power module, the accompanied wiring harness, or accessories as covered
by the guarantee.
The manufacturer does not make up for damage caused to the car by the use of ethanol containing fuel or the
use of the flex fuel power module. Neither does the manufacturer make up for damage caused by the installation
to the product, the installation’s target or the person carrying out the installation, if the installation is carried out
by the customer or by customer’s agent.
Returns
If you are experiencing an issue with your Multi-Gauge module, please contact us so we can help resolve it. If
you wish to return the system, all components must be returned in original packaging, in resalable condition.
The flex fuel power module will be inspected for damage prior to any refund being issued. All returns must be
made within 30 days from the date of purchase.
Contact Us
Instragram/Facebook: @apeflexfuel
Email: support@APEFlexFuel.com
Web: www.APEFlexFuel.com
ALTERNATIVE PERFORMANCE ENGINEERING, LLC
San Diego
Table of contents
