Look at the rubber fuel lines in the engine bay on any 20+ year old car. Years ago I saw a 944 with an engine fire, it is a very sad image. Flex the rubber hoses and look for microscopic cracking or other age problems. See:
SharkSkin - Shark Attack Round Thirty Four - Fuel Lines ; it is about a 928 but easily extrapolates to the 4cyl Porsches. As you know carry a spare DME relay, I put my new one in and save the old "known-working" one as backup. Good luck and Happy motoring.
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1988 Silver 924-S Original owner
Porsche 924S: The 944's cheaper, faster little sister.
