Civic 2005 4 door sedan (si) all of a sudden dead temp gauge + rpm not working and flashing key light.

[FrankT]

Hello first time post. Civic 2005 4 door sedan (si) all of a sudden dead temp gauge + rpm not working and flashing key light.

Lucky the car stars but runs rough (high idle)

Hope someone can help !!

 

[VatoAlfred]

As far as the dead temp gauge, I’d take it to someone who has a D2 sensor. This sensor is able to detect weather something is wrong with the sensor, or the actually thermostat. If it’s either or it’s a simple fix that doesn’t cost too much at all.
I actually very recently replaced my thermostat on my 1.7L 04’ couple because it was heating up.


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