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Old 30-01-13, 06:45 PM   #1
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Default Coolant temp sensor location?

Hi, Car is a 2007 308 1.6 petrol and the temp gauge goes straight into the red even when cold so i am assuming it is the coolant temp sensor.

Please could someone tell me where this is located.

Best regards

Jason

Last edited by Technic; 01-02-13 at 08:04 PM.
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Old 30-01-13, 07:12 PM   #2
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Gearbox side of the head. Clipped in.
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Old 31-01-13, 06:24 PM   #3
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Thanks for that, got one from peugeot today but am afraid the fault still remains, i have also noticed that just before the engine temp too high warning i also get anti pollution faulty also.

Any ideas? or is this one for the garage.
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Old 01-02-13, 08:07 PM   #4
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Default Problem solved!

I borrowed a mates OBDII diagnostic tool which showed error P0119 which indicates the coolant temp sensor faulty.

Having already replaced this I erased the error code, started the engine and everything appears to be back to normal with accurate temp readings and no warnings, happy days!

I hope my experience will help others in the future.

Best regards

Jason
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Old 20-07-13, 05:17 PM   #5
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Default ECU pin locations

I have the same problem on a Peugeot 308 1.6 petrol.
Sensor changed but still the fan runs. Also have a anti pollution fault.
I will get the fault codes reset tomorrow at my local garage but would like to check the wiring between the sensor and ECU for piece of mind as have had a sensor problem before.
Can anyone tell me the pin location on the ECU for the coolant temp sensor?

Also does any one know the part number for the coolant sensor electrical plug as it disintegrated!!!

Any help would be appreciated.

Last edited by martynhr; 20-07-13 at 05:25 PM. Reason: addition
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Old 20-07-13, 05:34 PM   #6
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The antipollution fault was my fault as I forgot to plug the knock sensor back in before starting the car. (front left of engine) This was a few days after the coolant fault when I was checking sensor readings with my meter, so I didn't think they were related.
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Old 22-07-13, 08:47 AM   #7
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If you plugged it back in the fault will clear after three driving cycles.
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Old 22-07-13, 12:59 PM   #8
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Hi Gibbo,

Thanks for the reply, much appreciated. When you say 3 cycles, what is a cycle?
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Old 22-07-13, 02:00 PM   #9
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Unlock car
Start
Drive
Park up
Lock car
Leave a while (30+ minutes?)
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Old 22-07-13, 03:22 PM   #10
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I tried that but didn't work so took it to my local garage.
Found out there was a short in the wiring of the coolant sensor (plug was knackered). Fitted and new plug, fault reset and off we go! Happy days!!!

Thanks for your help, much appreciated.

Until next time!!!
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