My car has been running great till the other day. I got into the car to go to work when the car wouldn't start. I would put the key in the ignition and everything seemed ok lights etc...but when I turn the key, the lights would turn off and the car would not start. No cloicking no nuthin.

I then took the battery out and had it checked and all is ok with it...I even cleaned the terminals.

I then put the battery back in and this time it starts. But now the idle is bad. It will randomly rev the engine like I was pressing the gas pedal, but I'm not.

I was gonna try to drive it around the block but it would stutter like it was going to die...

Any ideas?