Honda Repair: 1987 honda prelude, honda prelude, warning light

Question
Hello, my pgm-fi warning light is on (fuel injection} trying to find the code looked under the passenger side nothing no computer there.Please help where is it? Thank You David

Answer
David, older preludes have an ECU and the indicator light will have a flashing LED light. The ECU is located under the driver's seat. With the ignition switch in the "on" position and the engine OFF, the red LED on the ECU will flash the trouble codes. For example, 2 flashes, pause, 3 flashes would mean code 23. Codes are displayed in ascending order. This will tell you what is going on. Then Google the trouble codes per your 87 Honda Prelude.