Hi, I own a 2010 Nissan versa SL 1.8L hatch m/t with 141k km (88k miles). When I cold start it here in Canada in the winter when the temperature is below zero celsius, the car's idle sometimes drop to 500 rpm for a second, then everything is normal, or it kinda misfires its way through the start and then idles normally. (the last one usually happens when it's very cold out, like -10 to -15 degrees celsius). This idle drop makes it shake quite a bit and it looks like it wants to die. It sometimes happens when I'm idling and turn on a power eater accessory like blower motor, rear defrost, etc. Nothing else wrong with the car, no OBD2 codes tripped. I also am getting over 11L/100km (22miles per gallon) which looks abnormal. I don't know where to start, so thank you for any input.
If possible I would have your fuel pressure checked when cold like that otherwise start with the obvious like air filter and make sure it’s not being restricted and clean the throttle body
