Rough Idle and Check Engine Light

Hello,

My father in law has an 02 tacoma V6 4x4 with 140,000 miles and it is idling really poorly and has the following codes stored, P0300 (random misfire), P0302(Cylinder 2 Misfire), P1300(unsure). It has recently had the fuel filter replaced but that was done after the problem started. I was considering replacing plugs, wires, and cylinder 2 coil but wanted to see if there was anything else I should check first. (I am a diesel guy so not great on spark ignition vehicles) Thanks for any input!

 

Dirty MAP sensor possibly.

Or ,
http://www.yotatech.com/f2/help-please-p1300-code-dead-truck-164376/