Note: Pins vary slightly between 1990-1994 and 1995-1998 versions. Always verify with your specific ECU number.
: Look for THW (Water Temp), THA (Intake Air Temp), PIM (Manifold Pressure), and OX (Oxygen Sensor). 4afe ecu wiring diagram pdf
To manage fuel and timing, the ECU monitors the Water Temp Sensor, Intake Air Temperature, Oxygen levels, and RPM. Note: Pins vary slightly between 1990-1994 and 1995-1998