ECU Installation

JDM PR3/PWO ECUs

1. Desolder the stock 28 pin ROM and install the 28

pin socket with the notch facing the wiring

harness.

2. Install the 28 pin ROM  with the notch facing the wiring harness. The notch is

also drawn in white on the circuit board.

Caution: If you plug in an EPROM or EEPROM backwards it will

overheat and erase or damage the device.

3. Start and run the car. If you get a check light, plug back in the

stock ROM to test your soldering.