1994-2002 [Subscribe to Daily Digest] |
Here's a description from the Saab Workshop Manual, Read the last paragraph carefully.
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A spring loaded switch is located on the top of the gear selector lever and makes it possible to switch between the shifting programs NORMAL and SPORT. The switch has two connections, one to control module pin 7 and the other to grounding point G41S. The control module supplies B+ on pin 7. When the button is pressed in, the circuit closes to ground and a change of shifting programs is achieved.
SPORT can be activated in gear positions N, D, 3, 2, 1.
The NORMAL program is always engaged from starting.
Information on the current shifting program is send on the bus from TCM (used by MIU and Trionic) as SPORT, unit ON/OFF. When SPORT is selected, bus information SPORT ON is sent. In this position, Trionic increases the request air mass/combustion, i.e., the throttle valve angle changes to increase output at the same pedal position. The throttle angle does not change until the position of the accelerator pedal deviates from the position it was in when the SPORT button was depressed. This change adapts the shifting points to the performance. Shifting points for a light throttle opening and wide open throttle are identical for both programs, however.
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In other words, if you floor it or just slightly tap the throttle, there should not be any difference between the sport or normal mode. In the middle, however, the sport is more agressive. But don't expect more power. It just saves you an inch of the right foot movement ;). You can have it on all the time, and it shouldn't affect the fuel mileage much, since you can burn just as much gas in the non-sport mode by simply mashing the pedal harder.
posted by 199.246.4...
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