ejs Posted February 2, 2005 Share Posted February 2, 2005 My 1993 SC 300 was starting rough and running rough, like it was missing. Then the check light came on. It shows error code 21 and 43. Seemed like it was smelling like something was burning. Is 21 the O2S and 43 the starter signal, and if so what do I need to do to repair. It is really running rough and I believe I should refrain from driving it until I get this fixed. 158,000 miles Quote Link to comment Share on other sites More sharing options...
gcarpent Posted February 6, 2005 Share Posted February 6, 2005 Here is code 43. Quote Link to comment Share on other sites More sharing options...
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