Haltech support // Tuned by Shawn
Haltech Knowledge Base
Search every article in Haltech's knowledge base: Nexus and Elite ECU setup, NSP and ESP software help, sensor and trigger information, engine and vehicle functions, and tuning guides. Each result opens a quick summary with the matching Haltech parts we stock and a link to the full guide.
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Nexus ECU Information and Firmware Releases (11)
Overviews and pinouts for Nexus R3, R5, S2, S3, T1, T2 and Rebel units, plus Nexus and dash firmware release notes.
Wiring Diagrams (2)
ECU Information (4)
Nexus Series Firmware Help (407)
Setup and tuning help for Nexus VCUs and ECUs: sensors, fuel and ignition tuning, engine, vehicle and transmission functions.
Electrical (26)
Alternator Control
Battery Voltage
Brake Lights
Electrical
Engine Bump
Engine Control Relay
Headlights
Ignition Switch
Indicators
Kill Switch
Reverse Lights
Start Stop Button
Starter Motor
Turbo Timer
Engine Configuration (11)
Engine Configuration
Fuel System
Ignition System
Fuel Tuning (46)
Corrections
Fuel Tuning
Lambda Corrections
MAP Prediction / Fuel Film
O2 Control
Generics (9)
Generic Condition
Generic Sensor
Generic Timer
Generics
Ignition Tuning (22)
Corrections
Ignition Tuning
Sensors (56)
Air Conditioner Pressure
Air Conditioner Temperature
Ambient Air Temperature
Barometric Pressure
Boost Pressure
Brake Pedal Switch
Brake Pressure Front / Rear
Clutch Switch
Coolant Pressure
Coolant Temp Bias
Coolant Temperature
Crank Case Pressure
Differential Oil Temperature
ECU Temperature
Electrical Load Switch
Exhaust Gas Temperature
Exhaust Manifold Pressure
Flex Fuel Composition
Flex Fuel Composition/Temperature
Fuel Flow
Fuel Level
Fuel Pressure
Fuel Return Flow
Fuel Tank Pressure
Fuel Temperature
Humidity
Intake Air Temperature
Knock Detection
Manifold Pressure
Mass Air Flow
Narrowband O2
Neutral Switch
Nitrous Pressure
O2 Heater
Oil Pressure
Oil Pressure Switch
Oil Temperature
Power Steering Pressure
Power Steering Switch
Reverse Switch
Ride Height
Rotary Trim Module
Sensors
Shock Travel
Steering Angle
Throttle Position
Torque Converter Pressure
Transmission Line Pressure
Transmission Oil Temperature
Tumble Generator Valve
Turbo Speed
Vehicle Dynamics
Vehicle Speed
Wastegate Pressure
Wastegate Valve Position
Wideband O2
Transmission (57)
Accumulator Back-pressure Control
Flat Shift
Gear Detection
Gear Ratios
Line Pressure Control
Nissan ATTESA Control
Paddle Shift Inputs
Reverse Lockout
Torque Converter
Torque Reduction
Trans-Brake
Transfer Case Control
Transmission
Vehicle Functions (65)
Air Conditioner
Anti-Lag
Aux Limiter
Battery Light
Check Engine Light
Cruise Control
Honda AP1 S2000 Coolant Gauge
Launch Control
Oil Pressure Light
Pit Lane Speed Limiter
Race Timer
Rolling Anti-lag
Rotational Idle
Shift Lights
Staging Indicator
Tacho
Torque Management
Traction Control
Vehicle Functions
Engine Functions (107)
Air Pump
Boost Control
- Boost Control
- Boost Control Closed Loop Base Duty Cycle
- Boost Control Corrections
- Boost Control Delay
- Boost Control Long Term Trim
- Boost Control Open Loop Base Duty Cycle
- Boost Control Wiring
- Closed Loop Derivative Gain
- Closed Loop Integral Gain
- Closed Loop Manifold Pressure Expected
- Closed Loop Proportional Gain
- Closed Loop Target Pressure
Cam Control Switched
Decel
Drive By Wire
Dual Fuel Tank Transfer
Dual Intake Runner
EVAP
Engine Functions
Engine Pressure Ratio
Engine Protection
Fuel Pump
Idle Control
Ignition Bypass
Intake Air Bleed
Intercooler System
LPG
Main Limiter
Nitrous Controller
Nitrous Enable
Nitrous Override
Oil Metering Pump
Overboost Cut
Recirc Valve
Sequential Twin Turbo
Stall Saver
Thermo Fan
Variable Valve Lift
Water Injection
Water Injection Advanced
Dash Functions (1)
Nexus Software Programmer (NSP) (17)
Using NSP, the tuning software for Nexus and Elite ECUs on firmware 3.xx.
Dash functions (10)
Configuring for third-party ECUs
- Haltech Dash - CAN OBDII channels supported
- How to configure a Fueltech FT-Series ECU to work with a Haltech display dash
- How to configure a Hondata K-Pro V4 ECU to work with a Haltech display dash
- How to configure a Link G4 CAN-enabled ECU to work with a Haltech display dash
- How to configure a MaxxECU to work with a Haltech display dash
- How to configure a Motec ECU to work with a Haltech display dash
- How to configure a Syvecs ECU to work with a Haltech display dash
- IO between Dash and ECU in NSP
- Navigating dashes in NSP
- Sourcing data for dashes in NSP
General (4)
Functions (3)
Elite Series ECU Information and Installation (126)
Elite ECU specifications, wiring, mounting, first power-up and Elite PRO Plug-in installation guides.
Auxiliary Devices (1)
CAN Wideband Controller
Elite Pro Plug-in ECUs (17)
Ford Falcon I6 Barra - ECU Information
Elite Series ECU Information (55)
Elite 1000 / 2000
- Elite 1000 Main Connector Pinout - 26 Pin
- Elite 1000 Main Connector Pinout - 34 Pin
- Elite 1000 Overview
- Elite 1000 Wiring Diagram - 26 Pin
- Elite 1000 Wiring Diagram - 34 Pin
- Elite 2000 Main Connector Pinout - 26 Pin
- Elite 2000 Main Connector Pinout - 34 Pin
- Elite 2000 Overview
- Elite 2000 Wiring Diagram - 26 Pin
- Elite 2000 Wiring Diagram - 34 Pin
- Quick Start Guide - Side A (Elite 1000 / 2000)
- Quick Start Guide - Side B (Elite 1000 / 2000)
Elite 1500 / 2500
- 26 Pin (Elite 1500)
- 34 Pin (Elite 1500)
- Elite 1500 / 2500 Quick Start Guide
- Elite 1500 Overview
- Elite 1500/2500 CAN Communications Wiring Guide
- Elite 1500/2500 DBW Wiring Information
- Elite 2500 Fuse Block Wiring Diagram
- Elite 2500 Overview
- Elite 2500 Premium Universal Harness - 26 Pin
- Elite 2500 Premium Universal Harness - 34 Pin
- Elite 2500 Short Harness - 26 Pin
- Elite 2500 Short Harness - 34 Pin
- Main Connector 26 Pin (Elite1500)
- Main Connector 26 Pin (Elite2500)
- Main Connector 34 Pin (Elite1500)
- Main Connector 34 Pin (Elite2500)
Elite 2500 T Overview
Elite 550 / 750
- Elite 550 Basic Universal Harness Wiring Diagram
- Elite 550 Complete Pinout
- Elite 550 Overview
- Elite 550 Premium Universal Harness Wiring Diagram
- Elite 750 Basic Universal Harness Wiring Diagram
- Elite 750 Complete Pinout
- Elite 750 Overview
- Elite 750 Premium Universal Harness Wiring Diagram
- Quick Start Guide - Side A (Elite 550 / 750)
- Quick Start Guide - Side B (Elite 550 / 750)
Elite 950
Elite Race Expansion Module
Elite Series ECU Installation Guide (53)
Flying Lead Loom Installation on bare engine
Inputs
- Coolant Temp Sensor
- Digital Hall Effect and Optical Sensor Types
- Exhaust Gas Oxygen Sensors (Optional)
- Inlet Air Temperature Sensor
- Internal MAP Sensor
- Knock Sensor (Optional)
- Manifold Absolute Pressure Sensor
- Reluctor Sensor Types
- Throttle Position Sensor input
- Trigger Wiring (Crank and Cam Angle Sensors)
Mounting guide
Outputs
Powering Up for the first time
Status and Power LEDs, CAN, and USB ports
Elite Software Programmer (ESP) (188)
Navigating ESP, main setup of every engine and vehicle function, and the Elite tuning guide.
ESP - Main setup (132)
Functions
- Air Conditioner Control
- Air Conditioner Pressure Sensor
- Air Conditioner Temperature Sensor
- Air Pump
- Alternator Control
- Ambient Air Temperature Sensor
- Anti-Lag
- Automatic Transmission - Ford Falcon 6 Speed
- Auxiliary RPM Limiter
- Barometric Pressure Sensor
- Battery Voltage Diagnostics
- Boost Control
- Boost Pressure Sensor
- Brake Pedal Switch
- Brake Pressure Sensor (Front and Rear)
- Cam Control
- Cam Control Switched
- Check Engine Light
- Clutch Switch
- Coolant Pressure Sensor
- Coolant Temperature Sensor
- Crank Case Pressure Sensor
- Cruise Control
- Datalogging Switch
- Decel
- Differential Oil Temperature Sensor
- Drive By Wire
- Driveshaft RPM Sensor
- Dual Fuel Tank Transfer
- Dual Intake Runner
- Electrical Load Switch
- Engine On/Off Control
- Engine Pressure Ratio
- Engine Protection
- Evaporative Emissions Control
- Exhaust Gas Temperature Sensors
- Exhaust Manifold Pressure Sensor
- Flat Shift / Throttle Blip
- Flex Fuel Composition Sensor
- Flex Fuel Composition/Temperature Sensor
- Ford Travel Assistance Service
- Fuel Flow Sensor
- Fuel Level Sensor
- Fuel Pressure Sensor
- Fuel Pump
- Fuel Return Flow Sensor
- Fuel Tank Pressure Sensor
- Fuel Temperature Sensor
- Gear Detection
- Gear Ratios
- Gearbox Line Pressure Sensor
- Gearbox Oil Temperature Sensor
- Gearbox Torque Converter Pressure Sensor
- Generic Channel
- Generic Outputs
- Generic Sensors
- Generic Timers
- Honda AP1 S2000 Coolant Gauge
- Humidity Sensor
- Idle Control
- Ignition Bypass
- Intake Air Bleed
- Intake Air Temperature Sensor
- Intercooler System
- Knock Control
- Knock Detection
- Lateral G Sensor
- Launch Control
- Longitudinal G Sensor
- LPG Function
- Manifold Pressure Sensor
- Mass Airflow Sensor
- Narrowband O2 Sensors
- Neutral Switch
- Nitrous Control
- Nitrous Enablers
- Nitrous Overrides
- Nitrous Pressure Sensor
- Nitrous Stages
- O2 Control
- O2 Heater
- Oil Metering Pump
- Oil Pressure Sensor
- Oil Pressure Switch
- Oil Temperature Sensor
- Overboost Cut
- Power Steering Pressure Sensor
- Power Steering Switch
- Race Timer
- Recirculation Valve
- Reverse Lockout
- Reverse Switch
- Ride Height Sensors (Front and Rear)
- Rolling Anti-lag
- Rotary Trim Modules
- Rotational Idle
- RPM Limiter
- Sequential Twin Turbo - RX-7
- Shift Lights
- Shock Travel Sensors
- Staging Indicator
- Stall Saver
- Steering Angle Sensor
- Tachometer
- Thermofan
- Throttle Position Sensor
- Torque Converter Control Function
- Torque Management
- Torque Model
- Torque Reduction
- Traction Control
- Trans-Brake
- Transfer Case Control
- Transient Throttle
- Transmission Input RPM Sensor
- Tumble Generator Valve Sensor 1 and 2
- Turbo Speed Sensor 1 and 2
- Turbo Timer
- Variable Valve Lift
- Vehicle Speed Sensors
- Wastegate Pressure Sensor
- Wastegate Valve Position Sensor
- Water Injection
- Wideband O2 Sensor
- Yaw Sensor
ESP - Tuning Guide (21)
Boost Control Tuning
Cam Control Tuning
Fine Tuning the Engine
Idle Control Tuning
Introduction
Tuning Fuel
Tuning Ignition
Tuning Transient Throttle Enrichment
Welcome to ESP (1)
Technical Library (201)
Trigger systems, CAN protocol, vehicle-specific setup notes, wiring and electrical, and general tuning articles.
Haltech CAN Protocol Information (4)
Ignition (10)
Trigger System Information (13)
- Determining Hall Effect sensor pinouts
- Distributor Rotor Phasing
- EFI Hardware Hall Effect Distributors
- Engine Trigger Systems Explained
- FAST Dual-Sync Distributor
- Full Function Engineering Rotary 36-1 Crank Trigger
- MSD Cam Sync Distributor
- MSD Cam Sync Sensor
- MSD Crank Trigger Kit
- Nissan CAS – Facts and Fiction
- Platinum Racing Products PRP Pro Series Crank Trigger
- SuperUtes Harness Quick Start Guide
- Verifying The TDC Offset With A Dual Pickup Distributor
Sensors and other inputs (15)
- EGT sensors – everything you need to know (and then some)
- Extra Sensory Perception. What Sensors Do I Need ?
- Flex Fuel Composition/Temperature Sensor
- Hall Effect or Reluctor?
- Holden Commodore VE Accelerator Pedal Position (APP)
- How to use a temperature sensors on a SPI
- HT-010610 "Cherry" Hall Effect Sensor
- IQ3 Street - Adding Haltech GPS
- Manifold Absolute Pressure (MAP) Sensor
- Narrowband vs Wideband: Oxygen Sensors Explained
- Subaru Fuel Level Sensors - 04-07 and 2008+
- Temperature Sensor Problem Diagnosis
- Throttle Position Sensor - Finding the Correct Wiring
- Using ABS Wheel Speed Sensors with Nexus or Elite ECUs
- Wideband O2 Sensors explained
Engine Information (66)
BMW
Ford
GM - Holden
Honda
Hyundai
Mazda
Nissan
Subaru
Suzuki
Toyota
Fuel (5)
Transmission Information (3)
Toyota
Functions and Tuning (32)
- 10 Things You Need To Know About Rotary Tuning
- Base Map Basics
- Boost Control Explained
- Boost Control Manual
- Boost Control User's Guide
- Direct Injection
- Don’t Blow Your Engine!
- Dyno Tuning Basics
- Electric Wastegate
- Engine Limiting Channel States
- Flex Fuel Tuning Guide
- Flick of the switch: ECU control at your fingertips
- Haltech’s Advanced Torque Management – More Grip, Less Slip!
- How Flex Fuel Control Works
- How Launch Control Works
- How to switch between tunes with a dash switch
- How to use a timing light
- How Turbo Boost Control Works
- Ignition Timing VS Air to Fuel Ratio
- Knock Control
- Knock Control User's Guide
- Oil Pressure Sensor and Engine Protection
- PID control mapping
- Sequential Twin Turbo User's Guide
- Short and Long Term Fuel Trim
- They see me cruisin’ – How to set up Cruise Control on your Elite ECU
- Traction Control User's Guide
- Transient Throttle (Throttle Pump) Explained
- Tuning with VE (Volumetric Efficiency)
- Tuning with VE (Volumetric Efficiency)
- What is knock and why you should control it
- Wheelie Control with a Laser Ride Height Sensor
Wiring and Electrical (14)
- Dave's Step by Step Guide to Wiring a Complete Car
- ECU Grounding – the DOs and DONTs
- Elite series to Nexus S series pinout Swap
- FR-S / BRZ CAN information - How to set up vehicle CAN
- Getting smarter with SmartWire
- GM Alternator Control - VE Commodore
- How Relays Work and Why You Need One
- How To Depin A Bosch Pressure And Temp Sensor
- How to Install a Standalone iC-7 Dash
- How to wire GM’s LS using Haltech’s Terminated Harness
- NC Miata Alternator Control
- Nissan R33 IC-7 Wiring Guide
- Tech Tip: How to crimp like a pro
- Upgrading from Platinum Pro Plugin to Elite Plug’n’Play Adaptor
Tuning tips and guides (2)
Website Tech Articles (25)
- 1969 Mustang EFI conversion
- 6 Ways to Wire In Your ECU
- A lot of dash for not a lot of cash
- Base Map Basics
- Closed vs Open Loop Boost Control
- Cresta Carnage: Mighty Car Mods 9sec Barra Sleeper
- Dissecting Miss Daisy
- Dissecting WTAC’s Open Class winner
- Elite 1500 vs Elite 2500: What’s the difference?
- Elite in Maximum Attack Mode
- ESP – the key to unlocking Elite’s features
- Free Base Maps for your ECU
- Haltech Elite ECU and Drive-By-Wire
- Haltech Heroes: Brian Bugh’s Time Attack Corvette
- How Intercoolers Work
- How Plug’n’Play Adaptor Harnesses Work
- How to connect and set up your IQ3 Street Dash
- How to customise your ESP Tuning Page
- Nitrous – the forgotten power adder
- Sensing The Speed – How Wheel Speed Sensors Work
- Tech Tip: How to set your TDC Offset Angle
- Technically Speaking with Patrick Barnhill
- Uncovering Double Unicorn’s Magic – Mechanical Stig’s turbo V8
- VTEC Magic – MCM Mini Revisited
- Which ECU is right for YOU?
General Technical Articles (12)
- Anatomy of a V8 SuperUte
- EFI Your Classic – You’ll Like It!
- EFI – Power To The People!
- ESP - Manually adding firmware files
- Haltech IQ3 Street 'Firmware Error'
- How ECUs Work
- How Intercoolers Work
- How to read Power Curves
- Nitrous – the forgotten power adder
- Sensing The Speed – How Wheel Speed Sensors Work
- Windscreen Wipers
- Windscreen Wipers - Datsun 1200
Haltech Product Information (16)
Product notes for Nexus plug-in ECUs, harnesses, transmission interfaces, dashes and auxiliary devices.
Haltech Display Dashes (1)
Technical Information (2)
Haltech TMS-4 (1)
Haltech Elite ECUs (2)
Nexus Transmission Interface (2)
Nexus Auxiliary Devices (2)
Nexus Plug-in ECUs (4)
Nexus Harnesses (2)
General Information (2)
General Haltech information and product status.