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I have an ‘86 911 US Carrera.
Lately, it takes a few cranks to get started. It used to start first crank immediately.
Air filter is recent.
I don’t suspect fuel filter since once started, it runs perfectly.
I don’t suspect spark for same reason.
Top end was done 10K or so ago, & new engine bay fuel lines were installed then.
Today I swapped the DME relay and the problem remains.
Any ideas before I get into this fuel pressure regulator replacement?
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