04 Max is fine at idel but when i go to throttle the SES sensor is thrown. The engine seems to "shake". I have tick that I'm addressing right now but this rough driving has me concerned. I am going to replace the spark plugs just to start off but does anyone have any other idea what i may do if this doesnt work? i will explain in as much detail as possible if need be.

 

Did you replace the spark plugs? I am having a similar issue. Mine 04 runs rough on acceleration and the MIL Flashes.