Unterminated harnesses have the FuelTech connector on one end and labelled loose wires on the other, for custom installs where no complete harness fits.
Choosing an unterminated harness
ECU harnesses — FT250 through FT700. The FT550 needs both A and B harnesses; order the B harness alone only when upgrading from an FT450. Common lengths are 10 ft and 20 ft.
Ignition harnesses — for SparkPRO-1 to SparkPRO-8 and FTSPARK-4, -6, -8 and Extreme.
Module harnesses — peak & hold drivers, WB-O2 Nano and NanoPRO, EGT-4 CAN, input expander and GearController.
Dyno extensions — extension harnesses for older FT-series ECUs.
The unterminated harness for the FuelTech WB-O2 Datalogger. It carries the unit's power feed, its analog channel inputs and its analog output. For the...
The unterminated wiring harness for the FuelTech SparkPRO-8 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-6 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-5 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-4 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-3 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-2 ignition module. The module connector is installed and the leads are left open to wire to...
The unterminated wiring harness for the FuelTech SparkPRO-1 ignition module. The module connector is installed and the leads are left open to wire to...
This harness wires FuelTech's Peak & Hold PRO injector driver into the engine management system. The driver is what lets an ECU control high-performance...
The FTSPARK-8 harness is the wiring link between FuelTech's FTSPARK-8 capacitive discharge ignition module and the rest of the car: the ECU, power feed,...
The FTSPARK-6 harness is the wiring link between FuelTech's FTSPARK-6 capacitive discharge ignition module and the rest of the car: the ECU, power feed,...
The FTSPARK-4 harness is the wiring link between FuelTech's FTSPARK-4 capacitive discharge ignition module and the rest of the car: the ECU, power feed,...
The FTSPARK EXTREME harness is the wiring link between FuelTech's FTSPARK EXTREME capacitive discharge ignition module and the rest of the car: the ECU,...
The Multimedia M harness connects a FuelTech FT700 or FT700PLUS to external multimedia components, bringing features such as audio and video inputs into the...
An extension for an existing FuelTech FT500 harness, used on dynamometers so the ECU can be positioned away from the vehicle during tuning sessions....
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...
The unterminated main harness for FuelTech's FT200, FT250, FT300, FT350 and FT400 ECUs. The ECU plug comes installed and the remaining wires are left...
The wiring harness for FuelTech's dual channel Alcohol O2 conditioner. It comes pre-wired for two O2 sensors, with the vehicle side left unterminated for...
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