My car is a 92 Protoge DX with the 1.8L SOHC. about 175K miles and I bought it as a project car, it runs but has some issues.
I'm getting a check engine code 09 for coolant temperature sensor. I checked the "fan switch" sensor and replaced the guage / engine computer sensor (the one closer to the firewall) but there is still no reading on the guage even when the car is warmed up. There is a random wire that was hanging loose when I got the car, the only place I can see where it might go is a ground connection in the vicinity of the fan switch sensor - but if I make that connection the gage goes to pegged-high as soon as the ignition switch is turned on (engine cold). Anybody help?
I'm getting a check engine code 09 for coolant temperature sensor. I checked the "fan switch" sensor and replaced the guage / engine computer sensor (the one closer to the firewall) but there is still no reading on the guage even when the car is warmed up. There is a random wire that was hanging loose when I got the car, the only place I can see where it might go is a ground connection in the vicinity of the fan switch sensor - but if I make that connection the gage goes to pegged-high as soon as the ignition switch is turned on (engine cold). Anybody help?
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