Guest silverbullet Posted October 18, 2003 Report Share Posted October 18, 2003 what is a code 15 on a 1992 grand prix with the 3.1 engine? Quote Link to comment Share on other sites More sharing options...
Mensan Posted October 18, 2003 Report Share Posted October 18, 2003 Danger to manifold. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted October 18, 2003 Report Share Posted October 18, 2003 15 is usually Coolant Sensor Quote Link to comment Share on other sites More sharing options...
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