What you should be doing is running diagnostics, not randomly spraying stuff and changing out parts to see what happens.
Either get a vacuum gauge and check the idle vacuum on the car, or hook the car up to a Porsche specific scan tool and look at the fuel trims, and hook up a fuel pressure gauge and evaluate pressure and delivery rates.
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Last edited by JFP in PA; 05-12-2022 at 02:34 PM.
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