SR20DET WON’T warm up - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nisileighty · 02-18-2018, 07:16 PM

Hi all,

The car is a 93 coupe with a red top, second SR I’ve had. OEM clutch fan setup with a aluminum ISR radiator. Same exact setup I’ve had on my first SR before I swapped it for an RB.

Now that the car has been tuned with a power fc, it literally will not heat up on either the cluster temp gauge (unreliable) and the power fc commander (reliable). When I sit and let it idle for about an hour, the water temp will rise to about 65 degrees Celsius on the PFCC, and the oil will get to about 100 degrees Fahrenheit on the AEM temp gauge tapped into the oil pan.

Since it is a PFC with fuel correction, it won’t run correctly unless it’s at operating temp (78 Celsius) which gives me big problems trying to drive it, being boggy, hesitating, etc. Obviously I don’t have and hour and a half to sit and let it warm up every day, which has forced me to literally not drive the car anymore. I’ve replaced the thermostat TWICE with no change.

Any clarifying questions feel free to ask, but I’m very intrigued by this problem and looking for some help from anyone. TIA!

02-18-2018, 07:16 PM	#1
nisileighty Zilvia FREAK! Join Date: Feb 2016 Location: Seattle, WA Posts: 1,218 Trader Rating: (4) Feedback Score: 4 reviews	SR20DET WON’T warm up Hi all, The car is a 93 coupe with a red top, second SR I’ve had. OEM clutch fan setup with a aluminum ISR radiator. Same exact setup I’ve had on my first SR before I swapped it for an RB. Now that the car has been tuned with a power fc, it literally will not heat up on either the cluster temp gauge (unreliable) and the power fc commander (reliable). When I sit and let it idle for about an hour, the water temp will rise to about 65 degrees Celsius on the PFCC, and the oil will get to about 100 degrees Fahrenheit on the AEM temp gauge tapped into the oil pan. Since it is a PFC with fuel correction, it won’t run correctly unless it’s at operating temp (78 Celsius) which gives me big problems trying to drive it, being boggy, hesitating, etc. Obviously I don’t have and hour and a half to sit and let it warm up every day, which has forced me to literally not drive the car anymore. I’ve replaced the thermostat TWICE with no change. Any clarifying questions feel free to ask, but I’m very intrigued by this problem and looking for some help from anyone. TIA!