KTM 890 Hill Climb PNP Harness w/ MaxxECU Sport

Description

Plug-and-play precision for purpose-built KTM 890 hill-climb chassis.

Stop piecing together factory looms and chasing ground faults on the mountain. Designed specifically for competitive hill-climb builds utilizing the KTM 890 engine platform, this drop-in Standalone Wiring Harness Kit pairs directly with the included MaxxECU Sport to deliver complete engine management with zero compromise.

Built strictly to professional motorsport standards, every harness is constructed using M22759/32 Tefzel wire, fully heat-shrinked in chemical- and abrasion-resistant Raychem DR-25 jacketing, and terminated with 100% brand-new, OEM-grade connectors. Integrated into the assembly is a compact, fused relay panel providing clean power distribution and circuit protection without adding unnecessary bulk or weight.

Engine Control & Harness Highlights

• Full Sequential Control: Dedicated outputs for precise sequential fuel injection and sequential ignition spark.
• Integrated Power Distribution: Built-in mini relay and fuse panel to power and cleanly isolate your engine management system.
• Motorsport Build Quality: M22759/32 silver-plated Tefzel wire (AKA: Aircraft wire) jacketed in flame-retardant DR-25 heat shrink for maximum vibration, fluid, and thermal protection.
• 100% New Components: Built from the ground up with all-new OEM-grade connectors and terminals—no pinned-out salvaged components.
• Installation Manual: Includes a direct link to the comprehensive step-by-step installation manual for smooth setup.

MaxxECU Sport Key Features

The included MaxxECU Sport provides elite-level tuning features packed into a compact aluminum housing:

• Advanced Engine Management: Supports up to 6 cylinder fully sequential control with fast, intuitive MTune PC software interface.
• Built-In Bosch Wideband Lambda: Integrated LSU 4.2 / 4.9 wideband controller—no external modules needed for primary wideband.
• Built-In MAP Sensor: Integrated 400 kPa (up to 43 psi boost) pressure sensor.
• Built-In Engine Protection: Advanced safety cuts for oil pressure, lean conditions, and coolant temperature spikes.
• Motorsport Functions: Integrated launch control, traction control, flat shift, and anti-lag capabilities.
• High-Speed Data Logging: Internal high-speed logging up to 1000 Hz across all channels for total run analysis.

Inputs & Outputs Configuration

Input Channels	Output Channels & Expansion
Gear Position	Boost Control Solenoid
Shift Cut (Strain gauge / flat-shift)	Nitrous Control (Progressive or single-stage)
Clutch Switch Input	Fuel Pump Control
Starter Switch	Starter Lockout Relay
Expansion: Provisioned for 2nd WBO2 module	CAN-Bus: High-speed CAN output for digital dashes & loggers

What’s Included

1. Drop-In KTM 890 Hill-Climb Wiring Harness (M22759/32 & DR-25)
2. MaxxECU Sport Unit & Main Connector
3. Base tune Ready 2 Run
4. Wideband O2 Sensor Assembly
5. Integrated Fuse & Relay Panel
6. Installation Manual Access & Wiring Pinout Guide

Installation and Setup Instructions

Note: Harnesses are built on a as ordered basis. Can take up to 4-6 weeks to ship.