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I think the accumulator's job is to hold system pressure, not to build it up. That would be the fuel pump's job. I had disconnected the air flow detect switch, which will cause the fuel pump to come on before you start the engine. I would let the fuel pump run for 5 to 10 seconds (plenty of time to get pressure), but it would still cold start in the same way. The only difference was that instead of a 1/2 second lag before the engine fires, it would fire immediately. It would still settle into a very rough low idle and sometimes stall.
What's the complete name of the Bosch text that you mentioned. My Bosch book is a good primer on all Bosch systems, but lacks specific details of my K-Jetronic system.
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Bill Krause
'79 911SC Euro
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