Where Is He Temp Switch Located on a Subaru 08 Legacy


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#1: 01-15-2011, 04:23 PM

Which coolant temp sensor?

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My coolant temp sensor went out, it is reading 233 degrees on my torque app on my phone. I have read that the coolant temp sensor has something to do with air/fuel ratio. Right now the car will not start, it wasnts to but just wont.

My question is which one tells the ECU temp? Is it the one under the intake mani behind the alternator?

Thanks,
Kyle

#2: 01-15-2011, 04:26 PM
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There are 2, one is a 1 pin which controls the temperature guage and the other (the brown connector) goes to the ECU.

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#3: 01-15-2011, 04:31 PM
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Are they both right next to each other. The brown one is the one I was talking about under the intake mani. Sweet its only $26 bucks, I thought that was going to be much worse

#4: 01-15-2011, 04:36 PM
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Double check though to make sure I'm not an idiot

#5: 01-15-2011, 05:28 PM
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ects for the ECU

for the gauge.

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#6: 01-15-2011, 08:01 PM
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Sweet thanks.

#7: 01-15-2011, 08:14 PM
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hooray for me not being an idiot, at least this time

#8: 01-17-2011, 11:49 AM
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Haha ya well the car is running now. I will tell you what though, that sensor is a pita to replace. My knuckles are all torn up lol

#9: 03-30-2013, 10:37 PM

Coolant Sensor and Idle temp question

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Question, could a coolant temp sensor that's not working, throw off the idle on a cold starting vehicle. My 05 LGT has a goofy idle that causes the car to drop rpm's so low that it feels like it's going to die, then jump up and back and forth. We've tried to tune it out by richening up the idle but it's still showing troubles, any ideas . . .please?

#10: 04-03-2013, 02:24 AM
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Yes a faulty coolant temp sensor could cause a warm up running issue. It could be seeing a temp that is colder and dumping fuel to warm up the engine.

#11: 04-06-2013, 06:59 PM
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I'll keep an eye on my air/fuel gauge next time i start it up cold and see what it's doing.
It does have STI injectors not sure if that would cause any issues and I dont think it would as it's been tuned to run with them.

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Where Is He Temp Switch Located on a Subaru 08 Legacy

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