97 3fse ?, blows smoke but not always,.
Has done 241,000 had tune ($600), motor runs very well, good power. Have 4wd Corolla
1800 for comparison. Smokes really badly after coming down steep ski field road, lots of
engine braking. then after about 1 km, it would clear up.
With that amount of mileage, you probably have worn engine valve seals or worn piston rings. Time for an engine rebuild if you want to keep the car.