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Originally Posted by SonicVQ If the oil temp is showing a high temperature with the sensor unplugged, I suspect the oil temp signal wire is shorted to ground. To verify
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04-13-2020, 10:47 AM
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#1 (permalink) | |
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Base Member
Join Date: Jul 2018
Location: USA
Posts: 30
Drives: 2010 370Z 6mt turbo
Rep Power: 9  |
Quote:
So just to clarify... I check the wires for voltage one at a time by putting the red multimete probe on one wire & the black probe on a common grounded area? One should read 5v & the other 0v? The wires are green / black. Under normal circumstances, if the oil temp sensor is unplugged, does the car default to a high reading or what should happen? The sensor was replaced & is new. Last edited by OilLeaks; 04-13-2020 at 11:13 AM. |
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04-13-2020, 10:59 AM
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#2 (permalink) | ||
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Base Member
Join Date: Jan 2016
Location: Ontario
Posts: 232
Drives: G37 Sport
Rep Power: 6722  |
Quote:
A good ground is any unpainted aluminium part of the engine. Make sure to press the ground probe firmly to ensure a good connection. Quote:
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04-13-2020, 11:04 AM
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#3 (permalink) | |
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Base Member
Join Date: Jul 2018
Location: USA
Posts: 30
Drives: 2010 370Z 6mt turbo
Rep Power: 9 |
Quote:
I did this & got 0v on the black wire & 4.79v on the green wire. I presume it's okay then? |
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04-13-2020, 11:45 AM
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#5 (permalink) | |
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Base Member
Join Date: Jul 2018
Location: USA
Posts: 30
Drives: 2010 370Z 6mt turbo
Rep Power: 9 |
Quote:
The ecu may have problems then. 😕 I'll check that next. Ughhhhhhh |
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04-13-2020, 04:04 PM
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#6 (permalink) | |
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Base Member
Join Date: Jan 2016
Location: Ontario
Posts: 232
Drives: G37 Sport
Rep Power: 6722 |
Quote:
 I will have a look at the oil temp gauge wiring diagram and see if anythings stands out. If you have an OBD scanner and smart phone/tablet there are ways to check the oil temp using apps like Torque Pro or OBD Fusion (with the $15 enhanced diagnostic add on) This way we can verify the exact oil temp the ECU is seeing. If you have an Android device, here is how you can configure the Torque Pro (~$5) app to display engine oil temp for free: |
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