How about Faulty O2 (Oxygen) Sensors
In order to figure out if the check engine light code P0301 (misfire on cylinder 1) is being caused by a fuel injector, you can (in most cases) just switch it with a different cylinder. ... You can use it with spark plug wires, ignition coils (assuming you have a coil for each cylinder), spark plugs, etc.
What Causes a P0301 Code?
Spark Plugs and Wires
Internal Engine Problems such as Low Compression, etc.
Less Common Causes
Coil or Coil Packs
Crank or Cam sensors or reluctor wheels
Faulty O2 (Oxygen) Sensors
Nitro Year: 2007 (1 of 91,815 sold in 07)
Nitro Model: R/T 4X4 Stone White
CAT-BACK Exhaust, CAI, Projector Head Lamps
Fully-Equipped w/all factory options