sounds like you got scammed on the computer. was this your idea or the dealers.
it sounds like the same problem my buddy had,
try taking the slack out of your powervalve cables.(loocated above the exhaust ports, and in front of the spark plugs)
make sure the power valves are opening fully and closing fully.
these cables get stretched after some good use , and you will need to do this again later on in the year.
my buddy had to do this a couple times and then he ran out of adjustment so he bought new cables.
tell me if that works because i cant quit remeber if he also had to change a crank sensor or somethin(ill talk to him if that dosnt work)
also when the light on th dash flashes it is actually giving you a code..
the codes should be listed on your airbox or the belt cover(it will be under the hood somewhere)
this is the easiest way to self diagnoise. you will have to whatch to see how many times it blinks, or pauses, and then refer to the chart .
