Dies on deceleration - Saab 900 Bulletin Board - Saabnet.com
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Dies on deceleration
Posted by RadioFlyer [Email] (more from RadioFlyer) on Sat, 17 Nov 2012 13:58:27
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'90 SPG Red top injectors, 3.0bar fpr, 9000 red box, Jak Stoll EPROM, all new silicone vacuum hoses. The idle was always all over the place with the red tops, but EPROM helped a little for a couple of days and then the RPM started dropping out on deceleration, especially after heavy boost. It just drops right off the chart and the car stalls. Any ideas?
No apparent vacuum leaks - all vacuum lines are new, and couplers have been checked and tightened. The thick vacuum line fitting on the top left of the throttle body (if you are looking at it from the drivers side of the engine bay) slipped out at one point and I reattached it with high-temp silicone, but it still moves around a little. Seems fully sealed though - i used a lot of silicone.
posted by 65.130.102...
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