I have a 91 integra ls main relay, my EF relay was burnt when I switched some wiring on the engine harness. Are they interchangable? They looking the same but Im asking this to be positive before I swap them out.

 

Does it plug in?

This doesn't directly answer your question, but will help the thread:

I bought an OEM Main relay from Honda, and they gave me a CA Accord relay, apparently they're interchangeable. It's worked fine since.

 

yeah 88-91 civic and crx r the sam as the 90 to 91 integra 92 and up are obd 1 and will not work for ya