Date: Tue, 29 Apr 2003 20:51:39 GMT From: hohnopsamlid.invalid (Goran Larsson) Subject: Re: Check Engine light and Platinum Plugs...
In article <b8me2i$b6pad$1nopsam52899.news.dfncis.de>, Grunff <grunffnopsam.com> wrote: > Sound like the plugs are running too hot, causing predetonation. > This is being sensed, thereby triggering the warning. If the car is a recent model then the plugs are also used as sensors to sense combustion ionization inside the cylinders with the goal to control the combustion process and to detect predetonation/knocking. As the system is designed to use a certain NGK plug it may falsely detect predetonation or other bogous measurements when the wrong type of plugs are used. -- G–ran Larsson http://www.nospam.com/saab/