slight surge/chugging problem
We just bought another bonne, a 2003 ssei. We absolutely love the car, has 59k. Only issue other than the intermediate shaft is when we are on the highway going up a hill in overdrive, lugging the engine, it will chug-surge a little once or twice. It had a ses light come on today. I don't have a ODB 2 yet, but we had a garage scan it for us and he said we needed a new thermosat. Anyone have any ideas why it would surge? I wouldnt think that would be anything with the t-stat. Was thinking, fuel filter, injectors, IAC valve ,TPS.......not sure where to start.