Besides the U.S sender/Italian gauge mismatch, the 230 gauge normally READS WRONG! With the sender in a pan of water on the stove and a glass thermometer, its easy to check. Ford used two different resistors over the years to 'fix' this electrical mismatch (in the TSBs) and failed both times. The 260 gauge reads much closer to true and Jon's corrector should make things perfect. Just be sure Ford's dealer-installed 'corrector resistor' is not still taped into your gauge's sender wire. Mine wasn't even soldered!
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