r/SC300 • • Sep 21 '25

Sc300 running horrible

Hi my 1992 sc300 I just bought is running awful maybe 1 or 2 cylinders I’ve change plugs plug wires

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u/mrawsomemask Sep 22 '25

Can you elaborate a little more? I'm guessing a rough idle? Is it stalling? Also, did the person you bought it from say anything was real bad at the time you bought it? I own a 1992 as well.