Mkay..I've had my new car a couple weeks now. And it has always start right up as soon as I turned the key and would roar..smoked a little white smoke but that was all.

Well the past couple days It hasnt been like that. I'd turn the key and have to hold it a bit. And then the other day I was coming out of walmart went to start my car and it ran like **** idling.

The RPMs jumped up and down from 3k to almost dying. I put it in drive and when I got going it ran perfectly like it always has. Then whenever I started it up after that it was fine. Then I went to start it up again today and it did the same thing.

What could be wrong? badgas? fuelfilter? any suggestions?

 

Check your mass air flow sensor by unplugging it and starting it. Also look for any kind of vacuum leaks. May seem to run better in drive, but it will lack power. Give this a try and let us know if it worked. Just a good starting point. Also check to make sure your iac is clean as well.

 

Ok...I went out to start it up today and had no problems with it at all. I checked the lines and they all seemed in good condition.

So IDK, I don't think I lack any power at all and it only happens on startup when it does happen untill I put it into drive and get going..then its perfectly fine even if I let it sit and idle.

 

Then is sounds like your injectors might be possibly clogged a bit or you don't have enough fuel pressure. I would check fuel pressure first.