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Date: Thu, 15 May 2003 10:17:17 +0100
From: <nopsamt.ie>
Subject: Re: Check Engine light and Platinum Plugs...


This is really serious I replaced the plugs in my 9000CS with those bosch four pronged thingies in January. The engine seems the same but fuel consumption has increased from 30mpg to 23mpg . Are these two factors related? Also ,if NGK plugs are the way to go why does the haynes manual recommend Champion RC9YCC4 plugs. Should I change the plugs ? Peter C Johannes H Andersen <johsnopsamfitter.com> wrote in message news:3EAF5419.BC61F537nopsamfitter.com... > > > "Chris M." wrote: > > > > The car is a 1996 900SE Turbo and I'm beginning to believe I might > > have jacked myself by going with the Platinums ... On the way home > > tonight I got a loud "POP~~Shhhhhhhhhhhhh..." and then...No more turbo > > boost. > > > > At first I didn't notice the lack of boost and thought that maybe one > > of the cylinders had popped due to the new plugs; but, aren't all > > plugs designed to almost similar specs for all cars? I find it hard to > > believe that moving to "better" plugs would cause problems in a Saab. > > Half the car is made up of BOSCH parts and the plugs were BOSCH, why > > would they even make those wacky 2 and 4 pronged plugs for the general > > public if everyone's car is going to start pre-detonating and causing > > problems!? I didn't get those plugs per se...I got the regular BOSCH > > Platinum's and I have to admit that when I compared the plugs that > > were in the car to the new one's, the quality of the NGK's were > > sub-par to the BOSCH...nevermind the carbon deposits and worn firing > > head... > > And how did you compare the quality of the plugs? If ever there was a > good case for "If it ain't broke...". The spark plug in a Saab not only > provides spark, but also measures the condition in the cylinder from > the spark current. That resulting data assumes that NGK's are used. > > Johannes

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