Had many misfire codes, put new plugs, new plug wires, plus changed out both front 02 sensors. Still have misfire codes. P1300, P1319, PO300, PO301, plus PO305. Car runs rough, getting to much gas i can smell it. No codes on MAF. Has no power, do not understand why its getting to much gas. Any thoughts. Thanks

 

How many miles on the engine, what octane gas are you burning, whos plugs and wires?

 

Thanks for responding Mike.

114,000 miles Plugs Bosch Platinum #4418 . Wires i'm not sure 7mm high temp. The last owner give them to me.

 

On gas low octane, have not been using high octane,

 

So I would start by using the gas you are supposed to be burning unless you live above 8000 feet.
Get rid of the junk 7 mm wires and go to the 8 mm STI or Magencor wires then see what happens.

 

I will, thanks

 

But first fill up with 93 octane and see what that does. IF you have a full tank of gas get octane booster and get that crap out of there!

 

Octane booster does not work, save your money on that, just start using the proper grade of fuel.
Cheap plug wires will cause issues, use the ones Mike said.