Hello every one. I have 2000 Camry 2.2l . Some times engine weaker than usual i feel it on moving from stop and speeding up and cruising on expressway. It not happening always but some days, maybe maybe one or 2 times in a week.
If it wants to happen , it begins after starting the engine and driving it all the way to the destination and turn off the engine , not like this that happen down the road suddenly and go away and comeback randomly. First I thought it happens on rainy or high humidity days, but not, it also happened on nice dry sunshine days too. Spark plugs , wires , all replaced last year with expensive Denso ones. I have check engine light on due to other problem , morning cold start warmup misfire, p0300, p03001, This is common on all Toyota vehicles when get older and not hurting me as it only happens on freezing cold winter and only in idle not driving.
Any suggestions if any one have this problem and share your experience . Than You

 

The P0300 or P301 are cylinder misfires and not what I would consider as 'normal' for Toyotas or any vehicles. You need to look into the misfire, this can definitely cause poor engine performance.