I have a 96 Saturn sl2. 1.4 and the engine at runs however its idling rough and when I gas it it smokes really bad.and for the last 10000 miles or so itburns a quart of oil every or 150 miles
you're burning oil 2 or you're running a very rich air/fuel misture. running rich means your engine is getting a fuel/air mixture that has too much gas in it. that causes the dirty smoke i think this is what's happening. that's why your car feels like it's clogged. cuz you drove your car like this so long that the black smoked fouled up your catalytic converter and it's not flowing as well anymore. you'll have to replace the catalytic as well as the oxygen sensors, then repair whatever emissions component caused your car to fail and go into "rich mode" in the first place
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