I have a 1990 honda accord ex sedan.The problem is the "S" sports light will blink a problem code of 40 i think and the speedometer will not work either.I have tested the e.c.u and everything seems find.When the car runs for awhile the engine light also comes on then later all is well.It seems when the care gets hotter the problem gets better but living in Colorado where the weather changes so often it happpens allot.this makes me think it is a sensor.I don't know i am not a mechanic but i do allot of work on my care and would appreciate the help. Thank you Bob Colorado

Edited by Customer (name blocked for privacy) on May 12 2005 at 8:06 PM