This problem has been going on for a about a month and has continually gotten worse. The car will start but will sometimes die right away. The big problem is trying to accelerate. It feels like I popped the clutch and it bucks while going down the road. I have had the timing belt replaced but that did not seem to help at all. Replacing the PVC made a difference but it is not back to normal. It has just had an oil change and new plugs. Another thing it will do is at high speeds 60-70mph, the car will lose power and I need to stomp on the gas if I want to get back up to speed. Any Ideas on what it could be or what I should do next. I didn't find much using the search tool. Thanks.