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I had the same codes and when you first start the car go around to the passenger side and listen for a sound like a vacuum cleaner. It should run for around two minutes and then shut off. It is very noticeable. If you are hearing that sound then your pump is ok it is probably one or more of the diaphragms or electronic switches in the SAS system. Usually the main culprit is the main on/off switch/valve but you'll want to replace all of them anyway if one is bad. Also check the many small hoses that run off the switches and diaphragms. A small 25 cent hose located under the driver's side intake manifold had come loose on mine and was causing SAS codes.
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