bigbelly1 Posted August 10, 2010 Share Posted August 10, 2010 I need to know what the 3 big letters on the ECM or ECU computer mean? I have 2 junk 1992 Honda civic's one with APX on the ecm and the other has APY. Thanks 4 your help. Bigbelly1 Link to comment Share on other sites More sharing options...
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