HA Motorsports custom adapter harness for using one of our OBD1 Auto ECU packages and a separate transmission control unit on a 98-2002 Honda Accord 4cylinder. The stock 98-02 accord ECU controls both the engine and transmission, but the ECU is not chippable/tunable. By directing transmission controls to the separate transmission control unit, you can use our Neptune Auto ECU to control and tune your engine without loosing automatic transmission functionality.
All HA Motorsports ECU's, products, and services include a One Full-Year VIP Warranty
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