first off, have you tried clearing the codes? if not try that and see if they come back.
secondly:
quote from mcrow answer the same question on another thread:
Remove fuse 18 from the fuse panel then disconnect the harness and test the 2 outer terminals of the harness with the ignition on. Should be a minimum of 4 volts.
If these voltage, reconnect the harness and peel back the protective boot on the harness so you can get to the wires going into the connector. Put your LED test light to the center terminal and to either of the outer terminals. Then try to start the car, the LED should light up.
Also check that your rotor is making contact with all the cap terminals, these all wear overtime. If its not making solid contact with these cap terminals due to wear or carbon deposits you wont get good spark to those cylinders.