i had the same problem but when i changed my cam sensor it runs good for a few miles and then does it again. Im on sensor number 4 in two weeks. PLZ HLP!!!!!

 

My Neon (2003) just started giving the same codes P0300-Multiple Misfire and P0339-Cam Sensor. The car runs fine except on a cold startup where it will miss one or two times. You can reset the codes and it will run fine the rest of the day but the next morning - the same thing. I have checked the plugs and wires, and changed out the cam sensor but the next morning after startup it will miss and the engine light will again come on. HELP

 

I own a 05 Neon SXT with 115K miles. The engine started vibrating a lot. I installed new spark plugs, Spark plug wires, Coil, Fresh Oil Change and filter. I run this sucker in Premium Gasoline since I bought it 30 months ago with 50k miles. I drive about 100 miles to work back and forward. It still runs 90-95 mph. The help I need is where do I get Battery Wires since the plastic is coming off of mine and what other ideas you guys have about the damm vibration whole car shakes bad. I changed 2 motor mounts as well top pass and lower middle. Due to bad weather in houston I ran the car thru high water as well you think that mess the car up this happened at about 80k miles.

 

You already started a thread about it, nor does it have anything to do with what this thread is about. Stick to yours.