89 200 TQ rpm & timing sensors

[John Gourley]

Engine rpm sensor and ignition timing sensor on a 1989 200 TQ.........is
there any difference between sensors other than the color of the connector?
Both new sensors have the same checking specs.
The connectors are the same (except color).  Is there any reason those two
sensors will not interchange and function correctly?  When checking prices,
the rpm sensor is often nearly double the price of the
ignition timing sensor.   Anything wrong with using two ignition timing
sensors rather than one of each?

My 89 Avant has started giving me problems with a no start after being
warmed up for 25-30 minutes or more.  Doing the pouring on of water trick,
it fires right up.

thanks!

John Gourley