I have a 2006 HHR 2.2 ecotech engine that will not run. The engine cranks over, but will not start. I have tried starting it with starting fluid, but it will not fire up.

 

A bit more info would really help with the suggestions.

How fast is it turning over? At "normal" speed? If it is turning over slower than normal, have you charged the battery?
Does it make any unusual noises while you are turning it over?
Is the Check Engine Light on? If so, did you download the error code?
When did it last run? When it last ran, did it just die, or is this no-start condition occur a sudden occurrence?
Did this no-start condition occur immediately after some maintenance?
Does it have gas?
Have you checked to see if it has spark?

And I can go on............. we just need more info. Post what you got, and we'll see what we can help you out with.

 

Welcome to the site, x2 as Whopper asks