Possibly a sticky injector. What octane fuel are you running? Have you tried any injector cleaner? If not I'd recommend using 98+ and every 4 months running some STP injector cleaner through the system.
@hippy started
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Possibly a sticky injector. What octane fuel are you running? Have you tried any injector cleaner? If not I'd recommend using 98+ and every 4 months running some STP injector cleaner through the system.