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Re: 88 crx dx temp gauge
The temp gauge sending unit is under the distributor. It is a one wire plug and pretty easy to spot. Also the jumping up and down is either from low coolant causing a hot spot that cycles through your system, or more likely a bad ground in the engine compartment.
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Cheap, Fast, Reliable..Pick two

Current project:
Rio Red 91 hatch.
A6/Z6 build, Hondata S300, Tokico illumina/Ground Control.
"I'd rather run 12's on steelies than 15's on rotas."
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