Check engine light on

I have a 08 HHR. The check engine light cane on and the remote starter stopped working. I ran the tank almost empty and filled it up with premium, It was fine for a couple of days. Then again the engine light came on and the remote does not work. Any ideas? Thanks

retrieve the dtc that have set and post them.

Is it a factory remote or aftermarket?

Any local Auto parts store will pull code for free!