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FuelTech

FuelTech builds standalone engine management for everything from single-cylinder mini bikes to 12-cylinder drag cars and turbo jet skis. ASE stocks the FuelTech line next to its own JZ, K-series and ZF 8HP swap hardware, so the ECU, harness, sensors and ignition for a swap can come from the same place as the adapter plates.

What's in this collection

  • ECUs — FT450, FT550, FT550LITE, FT600 and FT700 standalone engine management
  • Wiring Harnesses — complete, unterminated and adapter harnesses, connector kits and CAN cables
  • O2 & EGT Conditioners — wideband O2 controllers, O2 sensors, EGT modules and thermocouples
  • Ignition Systems — FTSPARK CDI and SparkPRO inductive ignition modules, coils and harnesses
  • Fuel Injectors — high and low impedance FT Injectors plus peak & hold drivers
  • Fuel Systems — fuel filters, injector connectors and the parts that sit between tank and port
  • Switch Panels & Input Expanders — CAN switch panels and input expansion modules
  • Sensors & Valves — pressure, temperature, speed and chassis sensors, relays, boost valves and trigger wheels
  • Performance Accessories — fittings, steering wheels, mounts, dash inserts and billet intake manifolds
  • Water Sports — PWC harnesses and hardware for Yamaha, Sea-Doo and Kawasaki

How the system fits together

  • Start with the ECU. Every harness, connector kit and adapter harness is built for a specific ECU family, so pick the controller first.
  • Add a harness. Complete harnesses come pre-terminated for an engine family (LS, V8, universal 4- and 6-cylinder); unterminated harnesses are for custom builds.
  • Fuel and spark. High impedance FT Injectors run straight off the ECU; low impedance injectors need a peak & hold driver. Ignition modules (SparkPRO inductive or FTSPARK CDI) drive the coils.
  • Sensors and CAN accessories. Wideband controllers, EGT-4 modules, switch panels and the input expander talk to the ECU over CAN, which keeps analog inputs free for other sensors.
Running an 8HP swap? The FuelTech 8HP Transmission PCB Install Board sits in the Performance Accessories collection and pairs with ASE 8HP conversion kits.
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Categories
FuelTech FT600 FT700 A and B unterminated harness
FuelTech

FuelTech FT600 / FT700 A & B Unterminated Harness

$329.00
2001004001
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
The A & B unterminated harness set for installing a FuelTech FT600 or FT700 when the engine wiring is being built from scratch. Every...
FuelTech nitrous solid state relay
FuelTech

FuelTech Nitrous Solid State Relay

$139.00
3020100067
FuelTech FuelTech Relays FuelTech Sensors & Valves
This solid state relay is needed when running dual solenoids or large nitrous stages from a FuelTech ECU's built-in nitrous controller. Plan on one...
FuelTech FT550 B connector unterminated harness
FuelTech

FuelTech FT550 Unterminated Harness

$278.00
2001005569 / 2001005571
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
Unterminated wiring for the FuelTech FT550. A full FT550 install needs both the A and B harnesses, so the A & B options supply...
FuelTech Map Limiter MAP and MAF signal clamp module
FuelTech

FuelTech Map Limiter

$119.00
3010002704
FuelTech FuelTech Sensors & Valves
The FuelTech Map Limiter holds the factory MAP or MAF sensor signal at a set point once it reaches that value. When a stock-ECU...
FuelTech FT Dual Power Driver DPD module
FuelTech

FuelTech FT Dual Power Driver

$239.00
3010008282
FuelTech FuelTech Relays FuelTech Sensors & Valves
The FuelTech Dual Power Driver (DPD) is a current amplifier that lets an ECU output switch electric motors and actuators that draw more current...
FuelTech WB-O2 sensor NTK to Bosch adapter harness
FuelTech

FuelTech WB-O2 Sensor NTK to Bosch Adapter Harness

$89.00
2002100027
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
A short FuelTech adapter harness for wideband O2 setups that need to bridge NTK and Bosch sensor connectors. FuelTech publishes no further detail on...
FuelTech WB-O2 Nano to Alcohol O2 adapter harness
FuelTech

FuelTech WB-O2 Nano to Alcohol O2 Adapter Harness

$189.00
2001004348
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
PRO500 and PRO600 harnesses come with two WB-O2 Nano connections. To run FuelTech's dual-channel Alcohol O2 module on one of those harnesses, this adapter...
FuelTech WB-O2 Datalogger adapter harness
FuelTech

FuelTech WB-O2 Datalogger Adapter Harness

$79.00
2002001359
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
This harness connects the FuelTech WB-O2 Datalogger to the earlier FuelTech ECUs: FT400, FT350, FT300 and FT250. Connects the WB-O2 Datalogger to an FT...
FuelTech Peak and Hold PRO Y adapter harness overview
FuelTech

FuelTech Peak & Hold PRO Y Adapter Harness

$109.00
2002007174
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
Upgrading from a standard FuelTech Peak & Hold injector driver to the Peak & Hold PRO? This Y adapter connects the PRO driver to...
FuelTech flex fuel ethanol content sensor with quick-connect fittings
FuelTech

FuelTech Flex Fuel Sensor

$149.00
5005100353
FuelTech FuelTech Other Sensors FuelTech Sensors & Valves
The FuelTech Flex Fuel Sensor reads ethanol content and fuel temperature so the ECU can adjust ignition timing, fuel delivery and boost as the...
FuelTech turbo speed sensor
FuelTech

FuelTech Turbo Speed Sensor

$529.00
5005100320
FuelTech FuelTech RPM & Speed Sensors FuelTech Sensors & Valves
The FuelTech Turbo Speed Sensor measures compressor wheel speed so you can see whether the turbo is operating inside its compressor map and at...
FuelTech Hall effect RPM and speed sensor
FuelTech

FuelTech Hall Effect RPM / Speed Sensor

$111.00
5005100083 / 5005100086
FuelTech FuelTech RPM & Speed Sensors FuelTech Sensors & Valves
The FuelTech Hall Effect RPM / Speed Sensor reads rotating parts such as crankshafts, camshafts, driveshafts and wheels, giving the ECU accurate engine speed...
FuelTech Peak & Hold PRO injector driver module
FuelTech

FuelTech Peak & Hold PRO Injector Driver

$449.00
3010008062
FuelTech FuelTech Fuel Injectors FuelTech Fuel Systems FuelTech Peak & Hold Drivers
The FuelTech Peak & Hold PRO is an 8-channel driver for low impedance racing injectors. Peak and hold current are selected per channel in...
FuelTech driveshaft speed sensor with mounting bracket
FuelTech

FuelTech Driveshaft Sensor w/ Bracket

$229.00
5005100025
FuelTech FuelTech RPM & Speed Sensors FuelTech Sensors & Valves
The FuelTech Driveshaft Sensor with bracket reads driveshaft speed for traction control, driveshaft-based timing and data logging on FuelTech ECUs. It triggers off magnets...
FuelTech Peak & Hold 8A/2A injector driver top view
FuelTech

FuelTech Peak & Hold 8A/2A Injector Driver

$239.00
3010003325
FuelTech FuelTech Fuel Injectors FuelTech Fuel Systems FuelTech Peak & Hold Drivers
The FuelTech Peak & Hold 8A/2A is a 4-channel current-controlled driver for low impedance fuel injectors with below 1.5 ohms of resistance. It sits...
FuelTech LS550 V8 harness 8-way output connector kit
FuelTech

FuelTech LS550 V8 8-Way Connector Kit

$8.00
5011100092
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The 8-way connector kit plugs into the FuelTech LS550 V8 Complete Harness and provides up to 8 more outputs for auxiliary components and advanced...
FuelTech Peak & Hold 4A/1A injector driver top view
FuelTech

FuelTech Peak & Hold 4A/1A Injector Driver

$239.00
3010003324
FuelTech FuelTech Fuel Injectors FuelTech Fuel Systems FuelTech Peak & Hold Drivers
The FuelTech Peak & Hold 4A/1A is a 4-channel current-controlled driver for low impedance fuel injectors with 1.5 to 3 ohms of resistance. It...
FuelTech LS550 V8 harness 6-way output connector kit
FuelTech

FuelTech LS550 V8 6-Way Connector Kit

$7.00
5011100386
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
This 6-way connector kit plugs into the FuelTech LS550 V8 Complete Harness to make up to 6 more outputs available for driving additional components....
FuelTech Peak & Hold 2A/0.5A injector driver top view
FuelTech

FuelTech Peak & Hold 2A/0.5A Injector Driver

$239.00
3010003323
FuelTech FuelTech Fuel Injectors FuelTech Fuel Systems FuelTech Peak & Hold Drivers
The FuelTech Peak & Hold 2A/0.5A is a 4-channel current-controlled driver for low impedance fuel injectors with 3 to 7 ohms of resistance. It...
FuelTech FT500 unterminated wiring harness
FuelTech

FuelTech FT500 Unterminated Harness

$159.00
2001002772
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
The unterminated harness for the FuelTech FT500 ECU, for installs where the engine wiring is being built from scratch. The ECU connector end is...
FuelTech LS550 V8 harness 10-way input connector kit
FuelTech

FuelTech LS550 V8 10-Way Connector Kit

$10.00
5011100093
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The 10-way connector kit plugs into the FuelTech LS550 V8 Complete Harness to open up as many as 6 additional inputs for extra sensors...
FuelTech FT500 dyno extension harness
FuelTech

FuelTech FT500 Dyno Extension Harness

$179.00
2002003024
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
An extension for an existing FuelTech FT500 harness, used on dynamometers so the ECU can be positioned away from the vehicle during tuning sessions....
FuelTech LS 58X crank and cam sensor connector
FuelTech

FuelTech LS 58X Crank Sensor & LS Cam Sensor Connector

$10.00
5011100361
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses
The mating connector for the 58X crankshaft sensor and compatible camshaft sensor on GM LS engines. Use it when building or repairing an LS...
FuelTech FT450 FT550 A connector unterminated harness
FuelTech

FuelTech FT450/550 A Unterminated Harness

$139.00
2001005569
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
The unterminated harness for the "A" connector shared by the FuelTech FT450 and FT550. An FT550 install pairs it with the FT550 B harness,...
FuelTech FT400 unterminated auxiliary harness
FuelTech

FuelTech FT400 Unterminated Auxiliary Harness

$69.00
2001001031
FuelTech FuelTech Unterminated Harnesses FuelTech Wiring Harnesses
The unterminated auxiliary harness for the FuelTech FT400. It plugs into the FT400's auxiliary connector and leaves the other end open so the installer...
FuelTech Peak and Hold PRO to dual Peak and Hold adapter harness
FuelTech

FuelTech Peak & Hold PRO to Dual Peak & Hold Adapter Harness

$109.00
2002012848
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
This adapter harness links a Peak & Hold PRO connection to two standard FuelTech Peak & Hold injector drivers. FuelTech's listing gives no further...
FuelTech Peak and Hold PRO jumper harness
FuelTech

FuelTech Peak & Hold PRO Jumper

$79.00
2001009505
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
GENII and GENIII FuelTech complete harnesses are wired for the Peak & Hold PRO injector driver. If the engine uses high impedance injectors, this...
FuelTech Peak and Hold jumper harness plug
FuelTech

FuelTech Peak & Hold Jumper Harness

$6.00
2001000071
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
FuelTech complete harnesses are wired for external Peak & Hold drivers. When you run high impedance injectors instead, this jumper plugs into the driver...
FuelTech NanoPRO OBD2 expansion harness overview
FuelTech

FuelTech OBD2 Expansion for Existing NanoPRO Wiring Harness

$39.00
2002012794
FuelTech FuelTech Adapter Harnesses FuelTech Wiring Harnesses
If your NanoPRO harness is already in the car, this short expansion harness adds an OBD2 link so the NanoPRO can pull additional readings...
FuelTech WB-O2 Nano 12-pin connector kit
FuelTech

FuelTech WB-O2 Nano Connector Kit

$10.00
5011100290
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The 12-pin harness connector for the FuelTech WB-O2 Nano wideband conditioner. Use it when wiring a Nano into a custom harness or replacing a...
FuelTech water temperature sensor plug connector kit
FuelTech

FuelTech Water Temperature Sensor Plug Kit

$8.00
5005100019
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses
A connector kit for the water (coolant) temperature sensor circuit. It is used to install or replace the plug at the sensor so the...
FuelTech Type K miniature thermocouple connector 2-pin
FuelTech

FuelTech Type K Miniature Thermocouple Connector

$7.00
5005100032
FuelTech FuelTech Connectors & Plug Kits FuelTech O2 & EGT Conditioners FuelTech Sensors & Valves FuelTech Wiring Harnesses
A Type K miniature thermocouple connector in the 2-pin flat mini format. It connects thermocouple temperature probes to a FuelTech EGT-8 CAN or EGT-4...
FuelTech LS 24X crank and cam sensor connector kit
FuelTech

FuelTech LS 24X / Cam Connector Kit

$10.00
5011100360
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses
This connector kit wires the 24X crankshaft sensor and compatible camshaft sensor on a GM LS engine. It comes with the housing, pins and...
FuelTech Honda K J F series ignition coil connector kit
FuelTech

FuelTech Honda K/J/F Series Coil Connector Kit

$12.00
5011100501
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses Honda Ignition
Everything needed to replace or build one ignition coil connector on a Honda K, J or F series engine. The kit includes a locking...
FuelTech Honda K-series cam crank TPS sensor connector kit
FuelTech

FuelTech Honda K Series Cam/Crank/TPS Connector Kit

$12.00
5011100507
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses Honda
A connector kit for wiring a Honda K-series camshaft, crankshaft or throttle position sensor to your engine management system. It is shaped for the...
FuelTech Hall effect RPM and speed sensor plug kit
FuelTech

FuelTech Hall Effect RPM/Speed Sensor Plug Kit

$12.00
5005100086
FuelTech FuelTech Connectors & Plug Kits FuelTech Sensors & Valves FuelTech Wiring Harnesses
This plug kit connects a Hall effect RPM or speed sensor to your engine management system. Use it for a new sensor install or...
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