FuelTech FT450 pinout
ecurecovery.com/pinouts/fueltech/ft450 · Every pin checked against at least two of 5 FuelTech documents · data checked 2026-11-04
FuelTech FT450 pinout
Every pin of the 26-pin connector, with the wire colours of FuelTech's harness. Tap a pin to see what it does.
Every pin checked against at least two of 5 FuelTech documentsPick any pin on the drawing or in the table to see its function, its wire colour and the documents it was checked in.
FuelTech FT450 26-pin connector pinout
| Pin | Function | Wire | FuelTech note |
|---|---|---|---|
| 1 | Blue output #1 | Blue #1Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 2 | Blue output #2 | Blue #2Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 3 | Blue output #3 | Blue #3Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 4 | Blue output #4 | Blue #4Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 5 | Blue output #5 | Blue #5Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 6 | Blue output #6 | Blue #6Blue | These outputs are usually used for injector control. When needed, they can be configured as auxiliary outputs. |
| 7 | Power ground input | Black/white | 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. |
| 8 | Gray output #1 | Gray #1Grey | These outputs are usually used for ignition control. When needed, they can be set up as injector outputs or auxiliary outputs. |
| 9 | Gray output #2 | Gray #2Grey | These outputs are usually used for ignition control. When needed, they can be set up as injector outputs or auxiliary outputs. |
| 10 | Gray output #3 | Gray #3Grey | These outputs are usually used for ignition control. When needed, they can be set up as injector outputs or auxiliary outputs. |
| 11 | Gray output #4 | Gray #4Grey | These outputs are usually used for ignition control. When needed, they can be set up as injector outputs or auxiliary outputs. |
| 12 | Battery negative input | Black | Connected directly to the battery negative with no seams. Do not connect this wire to the chassis, engine block or head. |
| 13 | 12V input from relay | Red | Connected to the pin 87 of the Main Relay |
| 14 | 5V outputs for sensors | Green/Red | 5V voltage output for TPS, electronic throttle and pedal sensors |
| 15 | CAN A (-) | Yellow/Blue | |
| 16 | CAN A (+) | White/Red | |
| 17 | CAM sync signal input | Shielded Cable (white)WhiteShielded | Connected to the cam sync sensor (hall or magnetic) |
| 18 | Magnetic RPM sensor reference | Black Shielded Cable (White)WhiteShielded | 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. |
| 19 | RPM signal input | Black Shielded Cable (Red)RedShielded | 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, do not use the shield as negative |
| 20 | Input #1 | White #1White | Sensors input |
| 21 | Input #2 | White #2White | Sensors input |
| 22 | Input #3 | White #3White | Sensors input |
| 23 | Input #4 | White #4White | Sensors input |
| 24 | Input #5 | White #5White | Sensors input |
| 25 | Input #6 | White #6White | Sensors input |
| 26 | Input #7 | White #7White | Sensors input |
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Check my map freeFuelTech FT450 pins at a glance
- Which pins are CAN on the FuelTech FT450?
- CAN A (-): pin 15 (Yellow/Blue). CAN A (+): pin 16 (White/Red).
- Which pins are the crank and cam inputs on the FuelTech FT450?
- CAM sync signal input: pin 17 (Shielded Cable (white)). Magnetic RPM sensor reference: pin 18 (Black Shielded Cable (White)). RPM signal input: pin 19 (Black Shielded Cable (Red)).
- Which pins are the injector outputs on the FuelTech FT450?
- Blue output #1: pin 1 (Blue #1). Blue output #2: pin 2 (Blue #2). Blue output #3: pin 3 (Blue #3). Blue output #4: pin 4 (Blue #4). Blue output #5: pin 5 (Blue #5). Blue output #6: pin 6 (Blue #6).
- Which pins are the ignition outputs on the FuelTech FT450?
- Gray output #1: pin 8 (Gray #1). Gray output #2: pin 9 (Gray #2). Gray output #3: pin 10 (Gray #3). Gray output #4: pin 11 (Gray #4).
- Which pins are ground on the FuelTech FT450?
- Power ground input: pin 7 (Black/white).
- Which pins power the FuelTech FT450?
- 12V input from relay: pin 13 (Red).
- Which pins are the sensor supplies on the FuelTech FT450?
- 5V outputs for sensors: pin 14 (Green/Red).
Where this comes from
Only FuelTech's own documents. Pin names and notes are written exactly as FuelTech writes them.
FuelTech FT450 / FT550 / FT550LITE / FT600 manual
FuelTech 4 cylinder universal harness manual
FuelTech 6 cylinder universal A harness manual
FuelTech Sportsman data logging A harness manual
FuelTech PRO550 wiring harness manual
How we checked it
- We start from the pin table in FuelTech's manual for this ECU: pin, wire colour and function.
- Every pin is read again in a second FuelTech document: its harness manuals, which list each ECU pin with its wire colour, or for the FT700 its quick reference. A script compares them pin by pin.
- A pin is only shown when the second document gives the same wire colour and function. FuelTech names its general-purpose wires by colour and number (Blue #1 is blue output 1), so the number has to match too.
- Labels, notes and wire colours are written exactly as FuelTech writes them.
ECU Recovery is not affiliated with FuelTech. FuelTech and its product names are trademarks of FuelTech. If your harness came with its own diagram, check your wiring against it.
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