USM.0001 Service Bulletin/Repair Instructions

Blue iQ® User Manual
Blue iQ® User Manual

This manual should be kept in the vehicle.
USM.0001

January 7, 2021
Agility Fuel

Solutions LLC. Copyright ©2020. All rights reserved.

Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
Blue iQ® User Manual
Table of Contents

1. Introduction

2. Safety

2.1. Warnings and Signal Words

3. System Startup

3.1. System Not Ready Causes and Corrective Actions

Low Supply Pressure

Fill Receptacle

System Not Ready

4. Using the Blue iQ Gauge

4.1. Instant Fuel Economy Update

4.2. Default Screen

4.3. Screen Button Navigation

4.4. Eco Mode

4.4.1. Disable Eco Mode

4.5. Progressive Fuel Level Warnings and Derate

4.5.1. Derate Active Indicator

4.5.2. Override Derate
USM.0001 January 7, 2021
Page
Page
2

3

3

4

5

5

5

5

6

6

7

8

8

8

9

9

10
5. User Selectable Blue iQ Gauge Features
11
5.1. Distance to Empty (DTE) / Fuel Pressure Remaining

11

5.2. Distance to Empty (DTE) / Percentage Fuel Remaining 13

5.3. Time Remaining

5.4. Units Setup
12

13
5.5. Software Version

5.6. Trip Data Monitoring and Reset
13

14
5.7. Brightness and Contrast
15
6. Fuel System Over Temp Warning

7. System Faults
16

17
8. System Components

9. Glossary
18

19
10. Contact Information

Trademark Notice
Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
20

20
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Blue iQ® User Manual
1. Introduction
Agility® compressed natural gas (CNG) fuel systems equipped with Blue iQ® access original equipment manufacturer (OEM) Cummins® engine data to maximize vehicle

uptime and optimize performance. Blue iQ sensors monitor system pressure and temperature to deliver accurate temp-compensated fuel readings via a multifunction

dashboard gauge.

Blue iQ provides crucial system monitoring and operating data including real-time fuel economy, and places multiple functions at one’s fingertips.

 Engine-Linked Startup Logic protects fuel system and

engine and guards against downtime in cold conditions

 Vehicle Range Monitor calculates distance with fuel on

board, provides constant and accurate fuel readings, and

instant fuel economy feedback

 Eco Mode enhances fuel economy and extends vehicle

range

 Low Fuel Derate permits safe exit from traffic at

extremely low fuel levels

 Over Temperature Warning alerts driver of potentially

unsafe operating conditions
Blue iQ® gauge elements
Active indicator LED
Screen title

Derate Active indicator
Fuel pressure
Eco Mode Active indicator

Distance To Empty
Selection icon
Change screen icon
Settings icon
Menu navigation buttons
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3 of 22
Blue iQ® User Manual
2. Safety

Always read OEM vehicle and CNG system user manuals before attempting to operate vehicle and follow all OEM operating instructions.
Users must be trained in CNG vehicle operation before attempting Blue iQ system functions.
Never allow Blue iQ gauge use to interfere with safe vehicle operation.
2.1. Warnings and Signal Words

Symbol
Definition
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE is used to address practices not related to physical injury, such as best practices or tips to help an operation or procedure go

smoothly and prevent equipment damage.
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4 of 22
Blue iQ® User Manual
3. System Startup

Always perform OEM and fleet pre-trip vehicle inspection before attempting to operate a Blue iQ-equipped vehicle.

Starting a CNG vehicle is much like starting a gasoline- or diesel-powered vehicle. When the vehicle is powered on, the Blue iQ gauge will behave as follows:

Active indicator red LED lights up.
Display screen backlight illuminates.
1800 PSI

Agility
®
Eight bar graph segments appear in display.
Agility®
████████
Agility® logo may appear briefly.
Agility®
Agility®
fuel solutions
Agility
®
Blue iQ gauge menu buttons do not function until default screen appears.
USM.0001 January 7, 2021
Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
Display switches to Fuel Level

function which is the default screen.
Blue iQ gauge active indicator LED

flashes red if system is not ready.
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Blue iQ® User Manual
3.1. System Not Ready Causes and Corrective Actions
If the red multifunction LED at the top of the Blue iQ gauge illuminates and the Starter Lockout screen appears at ignition on, the accompanying display messages

indicate one or more of the following causes:

Fuel receptacle dust cap not installed / FMM door open

Low fuel pressure

Fuel system not ready
Corrective Action:

1. Turn ignition off

2. Observe FMM high-pressure fuel gauge

reading
Corrective Action:

1. Turn ignition off

2. Inspect fuel receptacle dust cap(s) / close FMM door
Corrective Action:

1. Turn ignition off

2. Observe FMM high-pressure fuel gauge

reading
Repeat starting sequence

≤ 50 psi /

344 kPa?
Yes
No
Add fuel

Add fuel

Start?
Yes
Operate vehicle
Yes
≤ 50 psi /

344 kPa?

No
No

Refer vehicle to service personnel
If equipped:

LP gauge < 50 psi / 344 kPa?
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Blue iQ® User Manual
4. Using the Blue iQ Gauge
During normal operating conditions, the multifunction active indicator LED indicates fuel economy or a system issue by changing color:

Green = Efficient acceleration delivering favorable fuel usage.

Amber = Normal acceleration may turn the LED amber.

Red = Fuel system requires attention. Causes may include the following:









Never allow Blue iQ gauge use to interfere with safe vehicle operation.
High fuel consumption resulting from aggressive acceleration or other inefficient operation

Starter Lockout triggered - refer to Section 3.1.

Low fuel - refer to Section 4.5.

Low fuel resulting in a Derate condition - refer to Section 4.5.

Fuel System Over Temperature Warning - refer to Section 6.
4.1. Instant Fuel Economy Update

Green LED illuminates when driving conditions

are favorable for fuel economy.
USM.0001 January 7, 2021
Under normal acceleration

the LED may turn amber.
Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
During inefficient acceleration, a red LED

indicates high fuel consumption.
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Blue iQ® User Manual
4.2. Default Screen
Fuel Level is the Blue iQ gauge default screen.
Never allow Blue iQ gauge use to interfere with safe vehicle operation.

“E” indicates Eco Mode is enabled. Refer to Section 4.4.
LEFT button
CENTER button
RIGHT button
4.3. Screen Button Navigation Sequence

Press

LEFT

button
Press

CENTER

button

Press LEFT or RIGHT button to

decrease or increase.

Press CENTER button to confirm.
Enable Eco Mode / Disable Eco Mode
Toggle from Fuel Pressure to Fuel Percentage
Press

RIGHT

button
USM.0001 January 7, 2021
Press CENTER button to select.

Press CENTER button again to confirm.
Press

RIGHT

button
Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
Override Derate Mode
Press

RIGHT

button
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Blue iQ® User Manual
4.4. Eco Mode
Never allow Blue iQ gauge use to interfere with safe vehicle operation.
Select Eco Mode for improved fuel economy and potentially longer range.

Press LEFT

button to scroll to

Eco Mode screen
Fleet managers may configure

Eco Mode parameters as follows:
Press RIGHT

button to enable

Eco Mode
Eco Mode Level
Torque Limit
Low
~90%
Medium
~80%
High
~70%
Identify Eco Mode Level* by

toggling through the Blue iQ gauge

menu. Refer to Section 4.3.
Press LEFT button

to scroll to next

screen desired

Eco Mode is disabled by default.
*Eco Mode Level is not user selectable.
4.4.1. Disable Eco Mode
Follow instructions in Section 4.4. when Eco Mode is desired.
Deselect Eco Mode when more power is required.
Eco Mode Active

indicator
Press LEFT

button to display

Eco Mode screen

USM.0001 January 7, 2021
Press RIGHT

button to disable

Eco Mode

Agility Fuel Solutions LLC. Copyright ©2021. All rights reserved.
Press RIGHT

button to resume

Eco Mode

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Blue iQ® User Manual
4.5. Progressive Fuel Level Messages and Derate
The active indicator LED and screen communicate relevant Fuel Level data using the following functions and messages:
Fuel level ≥ 88.0%:

Green LED illuminates

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