Harness Overview - Haltech HT-186206 Quick Start Manual

HARNESS OVERVIEW

Congratulations on purchasing a Haltech GM LSx
Non-DBW Terminated Engine Harness.
This terminated engine harness connects directly
to the Nexus R5 VCU and is designed for GM LSx
engines without Drive By Wire (DBW) throttle
control.
In conjunction with a Haltech Nexus R5 VCU this
harness provides virtually limitless performance
and tuning options for your LSx powered vehicle.
This Quick Start Guide will walk you through the
installation of this terminated engine harness along
with the options of adding optional sub-harnesses,
sensors, actuators and other devices.
WARNING!
This harness DOES NOT ground your engine.
Make sure your engine is sufficiently grounded.
A ground/earthing strap should be used to
ground your engine to the battery. Keep all wires
away from the exhaust manifold.
Harness Features:
Haltech Nexus R5 VCU connectors
Terminated engine bay and in-cabin connections
Connection to Haltech CAN devices (eg dash
displays, keypads, etc.)
Connection to sensors (eg crank, cam, MAP,
temperature, pressure, position, speed, flex fuel)
Dual wideband lambda sensor allocation
Dual knock sensor connection
Direct connection to the OEM ignition sub harness
Connection to 8 primary injectors (EV1) and a
breakout plug for 8 secondary injectors
Breakout connection for alternator control
Starter solenoid control
Idle stepper motor control
Dual boost control solenoid allocation
Breakout connection for thermofan and fuel pump
control
Breakout connection for transmission control
Spare inputs and outputs
Spare high current 8 Amp PDM outputs
2 2
What's in the bag?
• Terminated engine harness (HT-186206)
• Pack of DTM/DT connector and pin set to terminate to sensors, solenoids and other devices
• 2 x DTP-2 connectors with pre-crimped 12AWG wires to use for fuel pump and thermofan
• 1 x DT-8 connector with pre-crimped 18AWG wires
• 2 and 4 pin alternator adapter harnesses
Available sub-harnesses (sold separately)
Secondary injector breakout
HT-186001 V8 Secondary Injector EV1
Secondary injector breakout
HT-186003 V8 Secondary Injector USCAR
3 3