Description
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
- Compatible with low impedance injectors
- Traction control
- Rolling launch
- Compatible with both Bosch and NTK wideband sensors
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 harnesses from the list below:
| YAM-GP-REG-H-00 |
Voltage regulator charging harness for Yamaha WaveRunner 2018+. (This harness is required for any application that runs a 12V battery and OEM stator) |
| HT-010726 |
Adapter harness for Bosch LSU 4.9 wideband sensor (Sensor sold separately) |
| HT-010727 |
Adapter harness for NTK wideband sensor. (Sensor sold separately) |
| YAM-GP-TUNNEL-H-3F |
2ft sub-harness for tunnel pressure sensor (Sensor sold separately) |
| YAM-GP-OILP-H |
2.5ft harness for oil pressure monitoring (Sensor sold separately) |
