This harness completely replaces the OEM harness, ECU and fuse panel in the Yamaha WaveRunners GP1800 models from 2017-2022. We have perfected this design through years of racing and development. Completely waterproof when used as recommended and slim design packed with many features like:
Plugs to a Fueltech FT550 latest generation programmable ECU
4 primary injectors + 4 additional already in the harness (Used with our additional injector harness)
Boost control solenoid output
Ride control (Reverse)
Trim control
Bilge pump
Nitrous solenoid control
Nitrous bottle pressure
Oil pressure monitoring with adapter harness
Tunnel pressure monitoring via adapter harness
Compatible with OEM DBW throttle body. Compatible with Bosch throttle body via adapter harness
GPS input ready
Compatible with high impedance injectors only
Connects directly to a Nano wideband controller for use with LSU 4.2 sensor
1 Year limited warranty against manufacturing defects.
CAN bus expansion port for EGT or other Fueltech accessories.
External waterproof crank signal resistor easily changed for ultra-high RPM engines
Our harnesses have been winning races and setting records since 2011 and are a tested product. They come completely sealed with the basic functionality but can be easily expanded using our plug and play adapter harnesses in order to connect to any sensors the end user requires.
Full documentation and pinout is provided for easy troubleshooting as well as a complete catalog of every connector, contact and seal on our website.
We provide a base map with the purchase of every harness.
For applications that require additional functionality than what the base harness comes with, we recommend purchasing the correct adapter harnesses as well.
(Does not include ECU and Nano Wideband, sold separately)
Note: This harness completely eliminates the OEM display. Since the fuel level sensor is connected to the OEM display, it is up to the end user to reuse the fuel level connector and wire it up to our harness using the supplied connector pigtail.
This harness completely replaces the OEM harness in the Yamaha WaveRunners GP1800 models from 2017-2022. We have perfected this design through years of racing and development. Completely waterproof when used as recommended and slim design packed with many features like:
Plugs to a Haltech Nexus S2 latest generation programmable ECU
Boost control solenoid output
Ride control (Reverse)
Trim control
Auxiliary fuel pump support
Bilge pump
Compatible with OEM 2021+ dash and Haltech dash
Nitrous solenoid control
Nitrous bottle pressure
Oil pressure
Oil temperature
Tunnel pressure monitoring via adapter harness
Rotary trim input
Auxiliary switch input
Compatible with OEM DBW throttle body. Compatible with Bosch throttle body via adapter harness
Knock sensor control
Flex fuel sensor ready
GPS input ready
Can drive any type of injectors without any additional drivers.
Traction control and torque management
Rolling launch
Compatible with both Bosch and NTK wideband sensors
Ability to change 4 boost maps and 2 throttle feel maps directly from the OEM dash by using the original cruise control feature.
1 Year limited warranty against manufacturing defects.
CAN bus expansion port for EGT or other Haltech accessories.
These harnesses have been winning races since 2011 and are a tested product. They come completely sealed with the basic functionality but can be easily expanded using our plug and play adapter harnesses in order to connect to any sensors the end user requires.
Full documentation and pinout is provided for easy troubleshooting as well as a complete catalog of every connector, contact and seal on our website.
We provide a base map with the purchase of every harness.
For applications that require additional functionality than what the base harness comes with, we recommend purchasing the correct adapter harnesses as well.
