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Discussion Starter · #1 ·
I've purchased a used Nissan Versa 2009, 1.8S 6 Speed Manual Transmission. Beautiful, quiet and responsive car. All was perfect until the cold weather came in at -20..-28 degrees Celsius (-4..-19 F).

Firstly, my trunk would never fully lock. (hatchback)
Secondly, my sprayer nozzles were completely frozen (Front and Back). Thirdly, back from the gym, my car failed to start, cranking well, yet was unable to start.
Lastly, the famous Service Engine Soon light engaged on my dashboard.

I was able to resolve the two first problems with ease, just waiting for the temperature to become warmer.
The third problem scared me, after pushing my V to a safe parking lot, i gave myself the go to try a last time cranking the car. It finally started it but wasn't running completely the way it should. My V, pedal to the floor, didn't exceed 2.5k RPM, the accelerator wasn't responsive. I drove it around the parking lot and decided to drive home on some quiet roads, on which i noticed the Service Engine Soon Light. Once i turned the engine off at home, i decided to give it another try, the accelerator finally responded properly.
At this point, everything is resolved, the car is running very smooth, besides the Engine light bothering me.
I called the dealer and they told me that the light should turn off in a couple of days. It is day 5, it is still on, what should I do? What could it be?
 

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Discussion Starter · #3 ·
I have scanned my car with the OBD2 and it has detected 8 cases ranging the codes of P2100, P2101. Looks like there might be a problem with the throttle control motor relay. I have erased the codes and the light has not returned. I am going to wait until any action is necessary and notify the dealer. For all those interested here are the links of the codes.
P2100 Nissan Throttle Control Motor Relay Circuit Open OBDII Engine Light Trouble Code | Engine-Codes.com
P2101 Throttle Actuator 'A' Control Motor Circuit Range/Performance OBDII Engine Light Trouble Code | Engine-Codes.com
 
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