Time for the Viggen to "re-learn" ?? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Time for the Viggen to "re-learn" ??
Posted by STICKMAN (more from STICKMAN) on Fri, 25 Mar 2005 05:40:36
In Reply to: Viggen DI Failure, Carl Jorgensen, Thu, 24 Mar 2005 19:40:20
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I've read other posts of Viggens (& probably others) feeling flat or underpowered after service work has been done. I, too, experienced it a bit after the 30k work was done. Might it be the way the T7 "learns" as you drive? Many have written about lost power after the car has been pampered for an extended time. Seems that if you drive it hard, demanding full turbo utilization for some miles and for 6 or 7 shut-downs & re-starts, then it learns how much boost it can safely provide. My guess is when they replaced the DI (& disconnected the battery) perhaps it defaulted to a "safe" mode. Try driving along a slight upgrade at 2k rpm in 3rd gr and flooring it to 4k rpm. Do it every day a cpl times for a wk and see if it comes back to life.
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