Need ignition sys illustration:2007 camry V6 rough idle and vibration

[jbbnet]

I had an issue with my v6 camry 2grfe. The other day it had a rough idle and little engine power. Blinking check engine light was codes P0300 P0303, multiple misfires and misfire cyl #3, tried to figure out which coil was bad and swapped the coils around (far left one to the far right one, leaving center coil in place) and the code changed to P0300 p0304 p0306. Swapped them back to the original position and then only got P0300. I had the rotten egg smell from the catylic converter. Today I replaced all three coils and it drives much better but there is a small engine knock, like detonation. I wasn't sure if the CAT converter was clogged now or what else to check. Front spark plugs appear fine but I couldn't check the rear plugs.

Any common issues or ideas I should look into?

How do you access the rear plugs?

Does anyone have ALLDATA diagrams/illustrations of the ignition system?

Thanks,

[MJZ]

how many miles on your car?

Makes me wonder when my 2GR will start acting up.

[jbbnet]

Almost 80k. First issue ever.

[jbbnet]

I found it, http://www.cars4qatar.com/cars4qatar...E_Ignition.pdf