At the very least, you should read the wiring and installation section of the manual before you begin wiring. The greater your knowledge of the operation of the Haltech system, the easier you will find it to understand what you are doing, and why. Included throughout the manual are Warnings and Notes that will help your installation run smoothly, and indicate any dangers that you (the installer) or the Haltech ECU may face. Read any additional material accompanying this manual (if supplied) as it may include updates to the document since it was written.
You may need special parts, additional tools or test equipment in order to complete the installation. Ensure you have these items on hand before you begin to, in order to avoid frustration. Take care in installation, and do not cut corners; carelessness in the early stages of installation can cause issues later on, and can become costly and frustrating when finding and fixing unnecessary problems. You have the opportunity to ensure your Haltech system's operation is extremely dependable and easy to use by doing it right the first time! Another reason to exercise care during installation is to ensure there are no Fuel leaks and no un-insulated wiring which could potentially cause a spark or a short and furthermore a fire or an explosion. Also make sure you follow the proper workshop precautions, such as using safety stands when working underneath a jacked-up car.
Electromagnetic interference (EMI) from unsuppressed spark plugs and high tension leads can cause the ECU to fail. Please do not use them. In hot climates, or with turbocharged engines, you may need to employ heat shielding to prevent heat soak and damage to electrical and fuel parts. Use the coolest surfaces of the chassis as a heat sink for components and shield any wiring that may be affected by heat.
We recommend having your system tuned by a Haltech Dealer or by a Workshop that has the proper tuning equipment - such as an exhaust gas analyser, fuel pressure meter, Dynamometer etc. - otherwise trying to guess or tune by ear can lead to disastrous lean out conditions that could destroy your engine.
Note: In this manual, reference will be made to MAP (Manifold Absolute Pressure - as in MAP sensor) and the fuel maps stored in the ECU. Both are common industry terms, with entirely different meanings.
Avoid open sparks, flames or operation of electrical devices near flammable substances.
Always disconnect the battery cables when doing electrical work on your vehicle.
Do not charge the battery with a 24 Volt truck charger or reverse the polarity of the battery or any charging unit.
Do not charge the battery with the engine running as this could expose the ECU to an unregulated power supply that could destroy the ECU and other electrical equipment.
All fuel system components and wiring should be mounted away from heat sources, shielded if necessary and well ventilated.
Disconnect the Haltech ECU from the electrical system whenever doing any arc welding on the vehicle by unplugging the wiring harness connector from the ECU.
After completing the installation, make sure that there are no fuel leaks, and no wiring left un-insulated in case a spark or short-circuit occurs and causes a fire.
Also make sure that you follow all proper workshop safety procedures. If you're working underneath a jacked-up car, always use safety stands!