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Another temp gauge problem

My temp gauge is bouncing between normal temp (midway) and cold. It has gotten worse over last week.

 

New thermostat I Presume???

 

 

When looking at car from front which one is it? left or right, I konw ones for ECU and others for dash

 

Cheerz

 

 

R

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    The thermostat wouldnt cause it to jump around, if its knackered the temp would be wrong, but it wouldnt open and shut fast enough to make it "jump", sounds like your sensor, or the wiring to it is knackered or the guage itself. Have you tried cleaning the sensor plug and checking the wire to it. IIRC the yellow plug goes to the ecu to control the electric fan, the other goes to the guage. HTH

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