This interface board is for 1996 and later Subaru OBDII engines to eliminate seven common fault codes: fuel tank sensor signal, fuel tank pressure valve, fuel tank drain valve, fuel tank pressure solenoid valve, fan relay #1 & #2, fuel temperature, and fuel level.
Some codes may still be present but none of those are the cause of runability issues. Includes a list of the connections to the ECU. If it is ordered with our harness modification kit, the instructions there have a pinout specific to your year and model.
Now with built-in LED for check engine light!