Ok so the motor starts great, idles great, runs at top speed great, runs great under a slow accerleration, but under a quick accerleration it dies. I brought it into the local dealer and this is what they did, changed oils, top and bottom, changed plugs, fuel filter, put in a valve kit(needed or not, not sure) and said there was a recall on an exhaust sensors, so they changed that. I was charged $800cdn. I had asked them to look into the problem of it dieing under a quick accerleration and they told me that the vavle kit and sensor should work, but it didn't Anyone have any thoughts.