FuelTech FT700 ECU System User Guide
- September 27, 2024
- FuelTech
Table of Contents
- FuelTech FT700 ECU System
- Product Usage Instructions
- Fixing template FT700 and FT700 PLUS
- Overall FT700
- Overall FT700 PLUS
- A-connector diagram
- B-connector diagram
- C-connector diagram (optional)
- D-connector diagram (optional)
- M-connector diagram (optional)
- **Electrical harness Bosch LSU4.2
- FAQ
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
FuelTech FT700 ECU System
Product Specifications
- Model: VCU FT700 and FT700 PLUS
- Overall Dimensions (FT700): 8.62 in (W) x 5.43 in (H) x 3.11 in (D)
- Overall Dimensions (FT700 PLUS): 14.45 in (W) x 7.09 in (H) x 3.11 in (D)
Product Usage Instructions
Installation
- Use fixing templates FT700 and FT700 PLUS to mark the hole locations.
- Ensure the distance between hole centers is 6.50 in horizontally and 2.00 in vertically for both FT700 and FT700 PLUS.
- Mount the VCU ensuring the overall width and height match the specified measurements for the model.
Harness Connections
- The A connector features various pinouts with corresponding wire colors and functions. Ensure proper connection based on the provided information.
- The B connector harness connection information is not available in this extract.
Fixing template FT700 and FT700 PLUS
- Distance between hole centers (FT700 and FT700 PLUS) (horizontal): 6.50 in
- Distance between hole centers (FT700 and FT700 PLUS) (vertical): 2.00 in
- Overall width (VCU FT700) (horizontal): 8.62 in
- Overall height (VCU FT700) (vertical): 5.43 in
- Overall width (VCU FT700 PLUS) (horizontal): 14.45 in
- Overall height (VCU FT700 PLUS) (vertical): 7.09 in
Overall FT700
- Overall width (horizontal): 8.62 in
- Overall height (vertical): 5.43 in
- Depth: 3.11 in
Overall FT700 PLUS
- Overall width (horizontal): 8.62 in
- Overall height (vertical): 5.43 in
- Depth: 3.11 in
Harness connections A connector
| Pin | Wire Color | Function | Information |
|---|---|---|---|
| 01 | Blue #01 | Blue output #01 |
These outputs are usually used for injector control. When needed,
they can be configured as auxiliary outputs.
02| Blue #02| Blue output #02
03| Blue #03| Blue output #03
04| Blue #04| Blue output #04
05| Blue #05| Blue output #05
06| Blue #06| Blue output #06
07| Blue #07| Blue output #07
08| Blue #08| Blue output #08
09| Blue #09| Blue output #09
10| Blue #10| Blue output #10
11| Blue #11| Blue output #11
12| Blue #12| Blue output #12
13| Blue #13| Blue output #13
14| Blue #14| Blue output #14
15| Blue #15| Blue output #15
16| Blue #16| Blue output #16
17
|
Black/White
|
Power ground input
| Directly wired to the battery negative terminal with no seams. Do not
tap any other grounds to this wire, it must run clean straight to the battery
negative terminal.
18| Gray #01| Gray output #01|
These outputs are usually used for ignition control.
When needed, they can be set up as injector outputs or auxiliary
outputs.
By standard, Gray output #8 is used as a tachometer output 1.
19| Gray #02| Gray output #02
20| Gray #03| Gray output #03
21| Gray #04| Gray output #04
22| Gray #05| Gray output #05
23| Gray #06| Gray output #06
24| Gray #07| Gray output #07
25| Gray #08| Gray output #08
26| Yellow #01| Yellow output #01|
Electronic throttle and step motor outputs. Also used as injection
or auxiliary outputs (cooling fan, fuel pump, etc.)
27| Yellow #02| Yellow output #02
28| Yellow #03| Yellow output #03
29| Yellow #04| Yellow output #04
30| Yellow #05| Yellow output #05
31| Yellow #06| Yellow output #06
32| Yellow #07| Yellow output #07
33| Yellow #08| Yellow output #08
34| Red| 12V input from relay| Connected to the pin 87 of the Main Relay.
A-connector diagram
Harness connections B connector
| Pin | Wire Color | Function | Information |
|---|
01
|
Red
|
RPM signal input
| Connected to the crank trigger sensor (hall or magnetic) or to the distributor. To VR sensors, use the shield wire the sensor shield. To Hall sensor, use the shield as negative
02
|
White
| Magnetic RPM sensor reference| Connected to the negative wire of the
magnetic sensor. When OEM ECU is reading the sensor in parallel, split this
wire with OEM sensor negative – Do not connect when using hall effect sensor.
03| Red| Cam sync signal input| Connected to the cam sync sensor (hall or
magnetic)
04| White| Cam sync reference input| Connected to the cam sync sensor (hall or
magnetic)
– Use the shield as negative to the sensor
05| White #1| White input #1| Default: O2 sensor input
06| White #2| White input #2| Default: two-step input
07| White #3| White input #3| Default: Air conditioning button
08| White #4| White input #4| Default: Oil pressure
09| White #5| White input #5| Default: Coolant temperature
10| Black| Battery negative input| Connected directly to the battery negative
with no seams. Do not connect this wire to the chassis, engine block or
head.
11| Yellow/Blue| CAN A LOW|
CAN A
12| White/Red| CAN A HIGH
13| White #6| White input #6| Default: fuel pressure
14| White #7| White input #7| Default: Air temperature
15| White #8| White input #8| Default: pedal#2 signal input
16| White #9| White input #9| Default: pedal#1 signal input
17| White #10| White input #10| Default: MAP signal output, electronic
throttle 1B input signal
18| Black/White|
Power ground inputs
| Directly wired to the battery negative terminal with no seams. Do not
tap any other grounds to this wire, it must run clean straight to the battery
negative terminal.
19| Black/White
20| White/Red| CAN B HIGH| CAN B HIGH
21| White #11| White input #11| Default: TPS sensor
22| White #12| White input #12|
Sensors input
23| White #13| White input #13
24| White #14| White input #14
25| White #15| White input #15
26| Red| 12V input from relay| Connected to the pin 87 of the Main Relay
27| Green/Red| 5V outputs for sensors| 5V voltage output for TPS, electronic
throttle and pedal sensors
28| Yellow/Blue| CAN B LOW| CAN B LOW
29| Green/Black| Ground for sensors| Connected the sensors ground
30| White #16| White input #16|
Sensors input
31| White #17| White input #17
32| White #18| White input #18
33| White #19| White input #19| Power Shift Input – Blue wire Strain gage
sensor (positive signal)
34| White #20| White input #20| Power Shift Input – Orange wire Strain gage
sensor (negative signal)
B-connector diagram
NOTE
When using the GearController function connect the White wire from the shifter
to ground for sensors Green/ Black (pin #29).
IMPORTANT
Fuel only: When using this option, the RPM signal input cannot be
connected to a coil high voltage signal because the input has no protection
and will damage the trigger input on the ecu. Please use a tach output,
another rpm source or an ignition coil to tach adapter module to avoid damage
to the unit.
Harness connections C (optional)
| Pin | Wire Color | Function | Information |
|---|---|---|---|
| 01 | Red |
12V input from relay
|
Connected to the pin 87 of the Main Relay
02| Red
03| Red
04| Gray #09| Gray output #09| These outputs are usually used for ignition
control.
When needed, they can be set up as injector outputs or auxiliary
outputs.
By standard, Gray output #8 is used as a tachometer output 1.
05| Gray #10| Gray output #10
06| Gray #11| Gray output #11
07| Gray #12| Gray output #12
08| Yellow #09| Yellow output #09|
Electronic throttle and step motor outputs. Also used as injection
or auxiliary outputs (cooling fan, fuel pump, etc.)
09| Yellow #10| Yellow output #10
10| Yellow #11| Yellow output #11
11| Yellow #12| Yellow output #12
12| Yellow #13| Yellow output #13
13| Yellow #14| Yellow output #14
14| Yellow #15| Yellow output #15
15| Yellow #16| Yellow output #16
16| Yellow #17| Yellow output #17
17| Yellow #18| Yellow output #18
18| White/Red| CAN C (+)|
CAN C
19| Blue/Yellow| CAN C (-)
20| Yellow #19| Yellow output #19| Electronic throttle and step motor outputs.
Also used as injection
or auxiliary outputs (cooling fan, fuel pump, etc.)
21| Yellow #20| Yellow output #20
22| Yellow #21| Yellow output #21|
Power supply for O2 sensor heaters 1 and 2 ***.
23| Yellow #22| Yellow output #22
24| Black|
Battery negative input
|
Connected directly to the battery negative with no seams. Do not connect this wire to the chassis, engine block or head.
25| Black
26| Black
IMPORTANT
*** If you do not use the integrated O2 sensor conditioner, these outputs can
be used with two extra yellow outputs.
C-connector diagram (optional)
Harness connections D (optional)
| Pin | Wire Color | Primary function | Information | Secondary function |
|---|---|---|---|---|
| 01 | Red |
Input frequency channel #01
| Shielded cable for reading RPM and speed signals
– Frequency #01
| Input #21
02| White| Input #22
03| Red|
Input frequency channel #02
| Shielded cable for reading RPM and speed signals
– Frequency #02
| Input #23
04| White| Input #24
05| Red|
Input frequency channel #03
| Shielded cable for reading RPM and speed signals
– Frequency #03
| Input #25
06| White| Input #26
07| Red|
Input frequency channel #04
| Shielded cable for reading RPM and speed signals
– Frequency #04
| Input #27
08| White| Input #28
09| Pink #01| Input for high speed reading #01|
Used for high speed sensors (possibility of 1Msps samples when all channels active or 10Msps for a single channel).
| Input #29
10| Pink #02| Input for high speed reading #02| Input #30
11| Pink #03| Input for high speed reading #03| Input #31
12| Pink #04| Input for high speed reading #04| Input #32
13| Pink #05| Input for high speed reading #05| Input #33
14| Pink #06| Input for high speed reading #06| Input #34
15| Pink #07| Input for high speed reading #07| Input #35
16| Pink #08| Input for high speed reading #08| Input #36
17| Brown| Signal|
Connected O2 sensor #1
NOTE: The Heat positive signal sensor is in connector C, green wire (pin 22)
|
18| Yellow| Ground
19| Red| IP
20| Orange| Resistor calibration
21| Blue| Heater negative
22| Brown| Signal|
Connected O2 sensor #2
NOTE: The Heat positive signal sensor is in connector C, green wire (pin 23)
|
23| Yellow| Ground
24| Red| IP
25| Orange| Resistor calibration
26| Blue| Heater negative
IMPORTANT
Frequency and high speed inputs can be also configured as analog inputs.
D-connector diagram (optional)
Harness connections M (optional)
| Pin | Wire Color | Function | Information |
|---|---|---|---|
| 01 | Black/White | VI (video #2) | Shielded cable – signal |
| 02 | Black | GND VI2 (Ground video #2) | Use the shield as negative to video #2 |
| 03 | Black | GND MIC (Ground microphone) | Shielded cable to left and right |
microphone
04| Black/White| AOR (right speaker)| Shielded cable – signal
05| Black/White| AIR (right microphone input)| Shielded cable – signal
06| White/Red| CAN D (+)| CAN D (+)
07| Orange| ETH+ (Ethernet +)| Ethernet communication cable
08| Black/White| VI 1 (video #1)| Shielded cable – signal
09| Black| GND VI1 (Ground video #1)| Use the shield as negative to video #2
10| Black| GND SPK (Ground speaker)| Shielded cable to left and right speaker
11| Black/White| AOL (Left Speaker)| Shielded cable – signal
12| Black/White| AIL (left microphone input)| Shielded cable – signal
13| Yellow/blue| CAN D (-)| CAN D (-)
14| Green| ETH- (Ethernet -)| Ethernet communication cable
M-connector diagram (optional)
**Electrical harness Bosch LSU4.2
**
- O2 sensor #1****
Connec FT700| Pin FT700| Pin O2 LSU 4.2| Description
---|---|---|---
D
| 17| 1| Brown – signal
18| 5| Yellow – ground
19| 6| Red – IP
20| 2| Orange – resistor
21| 4| Blue – heater neg.
C| 22| 3| Green – heater pos. (comes of C connector – Pin 22)
- O2 sensor #2****
Connec FT700| Pin FT700| Pin O2 LSU 4.2| Description
---|---|---|---
D
| 22| 1| Brown – signal
23| 5| Yellow – ground
24| 6| Red – IP
25| 2| Orange – resistor
26| 4| Blue – heater neg.
C| 23| 3| Green – heater pos. (comes of C connector – Pin 23)
Electrical harness Bosch LSU4.9
- O2 sensor #1****
Connec FT700| Pin FT700| Pin O2 LSU 4.9| Description
---|---|---|---
D
| 17| 6| Brown – signal
18| 2| Yellow – ground
19| 1| Red – IP
20| 5| Orange – resistor
21| 3| Blue – heater neg.
C| 22| 4| Green – heater pos. (comes of C connector – Pin 22)
- O2 sensor #2****
Connec FT700| Pin FT700| Pin O2 LSU 4.9| Description
---|---|---|---
D
| 22| 6| Brown – signal
23| 2| Yellow – ground
24| 1| Red – IP
25| 5| Orange – resistor
26| 3| Blue – heater neg.
C| 23| 4| Green – heater pos. (comes of C connector – Pin 23)
Electrical harness O2 sensor NTK
- O2 sensor #1****
Connec FT700| Pin FT700| Pin O2 NTK| Description
---|---|---|---
D
| 17| 5| Brown – signal
18| 1| Yellow – ground
19| 3| Red – IP
20| –| Not used
Orange – resistor
21| 6| Blue – heater neg.
C| 22| 8| Green – heater pos. (comes of C connector – Pin 22)
- O2 sensor #2****
Connec FT700| Pin FT700| Pin O2 NTK| Description
---|---|---|---
D
| 22| 5| Brown – signal
23| 1| Yellow – ground
24| 3| Red – IP
25| –| Not used
Orange – resistor
26| 6| Blue – heater neg.
C| 23| 8| Green – heater pos. (comes of C connector – Pin 23)
FAQ
Q: What are the typical uses for the Blue outputs?
A: The Blue outputs are commonly used for injector control but can be
configured as auxiliary outputs when needed.
Q: How should the power ground input be connected?
A: The power ground input should be directly wired to the battery
negative terminal with no seams. Do not tap any other grounds to this wire; it
must run clean straight to the battery negative terminal.
Q: What is the standard function of Gray Output #8?
A: By standard, Gray output #8 is used as a tachometer output 1.