2002 Porsche 911 4S wouldn't start and I was told that it appeared to be the fuel pump. Fuel pump was changed and car ran normal for two weeks. Then it wouldn't start again and left me stranded at work for the second time. SAS found it to be a bad fuel pump relay. Ken stated that the old (bad) fuel pump had reduced the life of the fuel pump relay causing it to fail. While troubleshooting, Ken installed a new crankshaft sensor which I was not charged for nor was I charged for the relay. I will continue to take my car to SAS