Connections for these probes are very susceptible to
voltage generation with dissimilar metals. Be sure that any other wire
connections that are made to the probe wires are made on both wires
identically. Also, if a switch has been installed to monitor each cylinder on a
single indicator, you must switch both wires and not switch just one wire and
gang the others together. This introduces big errors. Before you start chasing
baffling and such, be sure your CHT indication is
calibrated!
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