2004 Aveo

[Skitzy16]

Hello All,

I am new to this forum. I have recently installed a new engine into an 2004 Chevy Aveo. It is the 1.6 liter. We are currently having issues with it not wanting to start in cold weather. It starts right up in warm weather which I find odd. We have changed the mass airflow sensor, the cam sensor, and the coolant sensor. I am not sure where to go from here I am looking forward to hearing for someone.

Thanks,

[slayerized6]

Following....

My engine misfires on cold starts when the ambient temp is low and goes away when the engine is warmed up a bit. Otherwise, it runs perfectly.

[Daox]

I'd check the intake air temp sensor since you already replaced the coolant temp sensor. It seems to be temperature dependent so I'd start there. If you have and OBDII scanner you can see if the sensor is good or bad by looking at its reading.