2017 Sienna LE, 1996 T100, 2007 Camry SE V6
My 99 has 217,000 miles, and new spark plugs (denso). When it is cold, there is a hesitation when I accelerate hard. It feels like I lose power for a split second. It only happens within the first few minutes of start-up. Air filter has approx 2,000 miles. I have never replaced the PCV valve.