i dont no wat to do

Can a bad valve couver gasket cause shaking?
(when in park,also sitting at a light?

checkengine light come when going-70-80 mph and comes on when car is seating at a light.....?


some times it dont come on...


when i changed alot of parts i never reset the ecu....fuse 7.5......and i never reset the memory...?

i didnt unplug the bettery can that be a reason? same code might be popin up causing the checkengine light to pop on...?

if your engine is shaking at idle you have a misfire. ecm misfire counter may set a dtc for the specific missing cylinder...check for dtc first. If not; isolate the misfire to a specific cylinder by doing a power balance test.

what type of car, year and engine?

it is a honda accord ex 2.2 auto trans....

1992

a bad valve cover gasket will not cause shaking... maybe leak but these two symptoms are probably unrelated