Please Help. Ignition Coil

[mjs3071]

My 2007 V6 Camry XLE has 77K miles on it and about 2 weeks ago the check enigine light came on while driving at highway speeds and after a hard acceleration. I called the service department and was informed that it was probably a misfire. The rep then stated that if the light went out not to worry. When I reestarted the car later that day no light = no worries. About 2 days later the the light came back on and this time I noticed a shutter during acceleration. I stored at the auto store and had the codes checked. I recieved P0351 code -Ignition Coil A primary and secondary circuit. sice then the light is intermitent. This morning same thing happend so I recheck the code and received the same P0351 but also got P0300 thru P0306. Multi Misfire Random and Misfire cylinder 1 thru 6 (P0301 thru P0306)

So here are the questions, Could Ignition coil A be causing the misfires in all cylinders? anything else I should consider? How hard is it to DIY replace the ignition coil A? any material I should reference? Tips etc. Thanks in advance.

[fatngs]

sounds like there is a problem with either the wires going to the coils or most likely the computer.... if an induvidual coil was bad it would come up " cylinder (#) misfire" ...... i would try disconnecting the battery for at least an hour or maybe even overnight to reset the computer.... if that doesnt do anything i would get it diagnosed at a good shop or dealer..... i kno it wont be cheap but everything is electronic and the problem could be a number of things