Hondata's warranty will not cover damage to the ECU and/or programmable ECU circuit board from the use of low impedance injectors, non-resistor spark plugs and/or incorrect engine ground location.
Injector Impedance
The Honda ECU is designed to use high impedance (or 'saturated') injectors. The use of low impedance (or 'peak and hold') injectors will damage the ECU and/or vehicle wiring. Low impedance injectors can be used with the addition of a resistor box, but it is recommended to use high impedance injectors if at all possible.
Non-Resistor Spark Plugs
Do not use non-resistor spark plugs. Non-resistor spark plugs cause a large amount of electrical interference which may affect vehicle electronics, including the ECU.
Engine Ground
It is very important that the ground from the wiring harness to the engine (G101) makes good electrical contact with the cylinder head. Otherwise the return path for the sensors, ignition and VTEC may be through the ECU case to the vehicle body, which may damage the ECU and/or programmable board inside the ECU. Note that KPro/S2000 users do not need to change the ground location as the S2000 ground is already in a good position on the cylinder head.
|
The recommended positions for the engine ground is either on a stud attached to the cylinder head (pictured) or the transmission end of the cylinder head (not pictured). |
Installation - please follow the installation steps in the correct order.
1. Download and install the KManager software from the Hondata website.
2. Install the USB drivers (for Windows XP or Windows 10).
3. Install the ECU (see Installing the ECU in the Vehicle).
4. Upload a base calibration into the ECU (see Uploading calibrations to the ECU).
If you have any problems refer to USB Troubleshooting