well last July i got my coil, plugs and wires (ac delco) changed due to a P0300, got it done still the same code. Since money was tight i lived with it and drove my car for almost another year till i was able to get the cap and rotor changed in February. Got that done and now it runs alot better but still pulling the same code. Only when stomp on it, it sputters a little and backfire every now and then. So do yall think I should get my plugs and wires changed again due to the fact Im running rich, if so what plugs and wires yall recommend? i may look into o2 too

 

Rather than continue to throw money at it with ineffective repairs, why don't you take it to a shop and let them diagnose and fix it right?

 

New plugs, wires, and o2's can't hurt anything.

 

Before you start throwing money at it, I suggest two things:
First, pull a couple of plugs and read them. I am sure there are lots of articles on the web on how to do that. It is very possible that the gap has grown too wide b/c of their age/mileage. If so, replace them.
Second, borrow a quality datalogger program or find someone who has one, and do a data run. (I use Autotap.)

I have a friend who was going through the parts replacement routine on his dd. When I found out what he was doing, I hooked up Autotap and my LM-1 and we went for a run. I went home, analyzed the data and sent him the log and an Excel spreadsheet. $65 later, he had his injectors rebuilt by a sponsor, and the car runs like a top. He also needed O2 sensors, but I was able to log the data for him and show him.

So it is your choice, start replacing parts until it runs O.K., or analyze the data that is readily available through your OBD2 port and replace the faulty part(s).

 

i second that.

 

i will definately look into getting a real diagnosis, but the only reason why i wanted to change plugs because i think they may be fouled out