1985 Honda Prelude - PGMf1

I have a PGMf1 light on my 1985 Honda Prelude. I have replaced the fuel regulator, cleaned the throttle, changed the rings on the injectors, removed and inspect the EGR valve which is working just fine. Any more ideas please share them with me. Thank you so much.

This is an OBD1 computer code light… You need to jumper the service plug and visually look at the LED on the ecu to read the code… It blinks at you to telegraph the code it is trying to warn you about.

Blink, Blink…pause…blink, blink, blink. Code 23 and so on and so forth.

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