Ok so been having a problem with the 2.0 ecotec cally. Couple of weeks ago when i overtook a car in third gear it seemed down on power and it bounced off a rev limiter at 4500 revs, After turning the engine off and re-starting it seemed to go fine and rev upto 6500 with no problems so thought it must be a one off.
Today the same, overtook a car and seemed to be down on power, so changed down to third and sure enough it bounced off rev limiter at 4500 revs. Engine off and restarted and it was fine.

Has anybody experienced a problem like this? any suggestions as to what to try?
Thought it might be some kind of limp mode.
Any help would be greatly appreciated as im not the best with electronics.
