My gti won't start today. It's turning over like it wants to but won't fire.

I'm taking it in Monday morning. Any ideas of cost for me and what it could be?

I don't know what the rates are in MT. but without testing I couldn't say for sure what it is, once it's checked then a price would be easy to give you. Right now all I can do is suggest some possibilities of what to check.

What should I check?

What do you know and what equipment do you have to check anything with. That's why I mentioned the basics of what it needs to work.

I'm going to have the dealer check the codes on Monday

If you want to post them that we might help would be fine.

Will do

I'm in Canada Not sure if it's the same

Sorry , I was going by the "MT".Thought you were in Montana. Canada may still have laws pertaining to emissions in your area , maybe google , bing , whatever , if nothing in the owners manual, or other book that came with car. Good luck.