Q: Difficult startup with a lot of idling when it's cold
My car has difficulty starting up when it's cold. It has trouble starting at 40 degrees and below. There is a lot of idling when it finally turns on. When the weather is warm, the car has no issues starting and runs great. The crank shaft position sensor is replaced on the car. I also had fuel pump relay and idle control valve changed. The issue persists still. What else can I check? Thank you in advance.
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