On a 2006 dodge charger, was driving and car lost power and went dead. Could that be a fuel pump

SOURCE: 2006 dodge charger with hemi

1. check the battery first

usually the battery run down.

SOURCE: 2006 Dodge Charger

I have a Dodge Charger r/t bought it new. I have 46,000 miles on it. Notice it is using oil and at idle there is a pinging noise.

SOURCE: 2006 dodge charger battery is completely dead and will not charge properly or allow me to jump it.

You need a new battery.

SOURCE: SPARK PLUG INSTALLATION ON 2006 DODGE CHARGER 2.7L

In my experience with the 2.7L engine, the spark plugs are located on the top of the engine below the individual ignition coils. The coils are placed between the intake manifold and the valve covers, 3 per side. The coils are held in with "torx" screws. Simply remove the screws, and disconnect the connectors to remove the coils. The spark plugs will be underneath. Be sure to properly gap the spark plugs for maximum life and emissions compliance. Also, an improperly gapped plug can shorten the life of the coil packs.
Hope this helps!

SOURCE: installed new ignition switch in

Does the key have a chip in it ? I'm not familiar with the car but it sounds like you might be at odds with the anti theft system. Check with the dealer and see what information they have. Good Luck