ECT sensor on 97Q45

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trajanH
Posts: 117
Joined: Sun May 24, 2009 7:58 am
Car: 1997 infiniti Q45T
Location: Southern California

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Can someone tell me exactly where the ECT sensor(engine coolant temperature) harness is on the 97 q45? I have the FSM for the 98 Q45 and I do not see the ECT sensor harness at the location where the 98 FSM describes.
My check engine light is on and the code 13 is for the coolant temperature sensor. Im trying to do the diagnostic but i cant find the sensor. Any help would really be appreciated.


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paranoidjack
Posts: 1417
Joined: Mon Oct 03, 2005 3:57 pm
Car: 2012 Infiniti M56 S
2003 Infiniti M45
2001 Infiniti QX4
2000 Infiniti Q45
1998 Nissan Pathfinder
1996 Infiniti J30

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Not quite sure, but I'm pretty certain that it's on the upper coolant line (hard metal), near the secondary radiator cap.

trajanH
Posts: 117
Joined: Sun May 24, 2009 7:58 am
Car: 1997 infiniti Q45T
Location: Southern California

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hmm... in the 98 FSM it says that it is near the # 2 injector and i could not see anything at after a lot of time searching i noticed a sensor hidden in a hard to reach area below the #2 injector. i had to remove some harness wires and the throttle cable assembly and it was still hard to get to. I squeezed my hands in there and when i tried to disconnect the harness to check it , the plastic was so brittle that pieces shattered in my fingers.
I hope you are right that it is on the upper coolant line in the 97 q45 cause that is so easy to get to.
Now, i might need a new harness connector. :tisk:


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