88-91 all the wiring information you could need is in here Fuse crx box diagram honda 1990 dash sponsored links under 91 crx dx wiring diagram
1990 Honda Crx Fuse Box Diagram
Pinout ecu mpfi obd pr4 honda wiring rywire civic crx help question diagram obd0 distributor 1991 tech 1988 could need
Crx wiring diagram
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