I posted the same problem last month and no one replied. A year ago I had this problem and replaced the fuel filter. I had no further trouble for a whole year, then mysteriously last month it's back again. Replacing the fuel filter didn't help this time. I have since run a tank of gas with STP fuel system cleaner, run a tank of premium gas, replaced the air filter, run a tank of gas with Gumout fuel injector cleaner, reset my cel light three times by disconnecting the negative battery post. My latest find was a sensor plugged into the engine block in front of the engine with two wires coming out of it. There was a woven sock covering the wires. The sock was pulled back, exposing electrical tape around the individual wires, I pulled the sock up over the apparent splice, reset my cel and have been waiting the last several days {with a fresh tank of gas after getting about 175 miles on a full tank of gas with the fuel injector cleaner in the tank)for more trouble.