Date: Wed, 30 Apr 2003 07:15:36 GMT From: hohnopsamlid.invalid (Goran Larsson) Subject: Re: Check Engine light and Platinum Plugs...
In article <f96a287.0304292003.9b073aenopsaming.google.com>, Chris M. <chris.mayfieldnopsamox.com> wrote: > The car is a 1996 900SE Turbo and I'm beginning to believe I might Trionic 5 with red DI cassette. > 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. This sounds more serious than just a spark plug from a different manufacturer. The "normal" problem in this case is uneven idle, uneven acceleration, and/or false engine knocking detection. A loud POP, Shhhhhhhhhhhhh, no more turbo sounds more like some inlet tubes between the turbo and the throttle body broke or worked itself loose. > but, aren't all > plugs designed to almost similar specs for all cars? No. The plurality of spark plug sizes, types, shapes, etc is a clear indication that spark plugs are designed to different specifications for different cars. The spark plug seems to be a simple component at first look, but that is wrong. > I find it hard to > believe that moving to "better" plugs would cause problems in a Saab. The majority of cars use the spark plugs only to generate a spark. Saab also use the spark plugs as a sensor to sense the conditions inside the cylinders. A spark plug designed to a different specification may not work the same when used as a sensor. It is common knowledge that the specified NGK plugs are the way to go for Saab engines. > 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!? Very few engines use the spark plugs as sensors, so for most engines these vanity-plugs work just like normal plugs. -- G–ran Larsson http://www.nospam.com/saab/