One of my current issues with my GTS-T (the O2 Sensor doesn't look a like a happy camper either) is a warm start issue. After many hours of trying to get drivers for my Nissan Consult that actually work, I plugged it up today and let the car warm up.
The Coolant Temp reading didn't change, remaining at 1C. Both terminals on the CTS are in good condition with no corrosion. I measured the resistance across the CTS terminals, and with the car at around a 1/4 of normal operating temperature on the gauge (it had cooled quickly after the initial test) I am getting a reading of 500 Ohms descending as the car gets warmer.
Wondered if anyone knew what the resistance should be?
![Image]()
I've just read this from http://www.gtrcanada.com/wordpress/2011/11/diagnosing-nissan-idle-issues/ so I think that answers my question but I'll leave the post up in case it's useful to someone else.
Coolant temperature sensor:
The ECU coolant temp sensor is a very common cause of high idle, hesitation and safety boost mode. It’s located in front of the engine on the upper aluminum coolant pipe (see pic 5). Most often the source of the problem is bad connection caused by corrosion on its contact. You can also check the resistance of the sensor by measuring it across its terminals.
The resistance should be:
2.1-2.9 kOhm at 20C (68F)
0.68-1.0 kOhm at 50C (122F)
0.30-0.33 kOhm at 80C (176F)
Cheers...
The Coolant Temp reading didn't change, remaining at 1C. Both terminals on the CTS are in good condition with no corrosion. I measured the resistance across the CTS terminals, and with the car at around a 1/4 of normal operating temperature on the gauge (it had cooled quickly after the initial test) I am getting a reading of 500 Ohms descending as the car gets warmer.
Wondered if anyone knew what the resistance should be?
I've just read this from http://www.gtrcanada.com/wordpress/2011/11/diagnosing-nissan-idle-issues/ so I think that answers my question but I'll leave the post up in case it's useful to someone else.
Coolant temperature sensor:
The ECU coolant temp sensor is a very common cause of high idle, hesitation and safety boost mode. It’s located in front of the engine on the upper aluminum coolant pipe (see pic 5). Most often the source of the problem is bad connection caused by corrosion on its contact. You can also check the resistance of the sensor by measuring it across its terminals.
The resistance should be:
2.1-2.9 kOhm at 20C (68F)
0.68-1.0 kOhm at 50C (122F)
0.30-0.33 kOhm at 80C (176F)
Cheers...
