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by zebrateeth
Sun Aug 10, 2025 7:16 am
Forum: FlashPro Manager
Topic: Engine sputters, error code P0304, and possible boost leak
Replies: 1
Views: 745

Engine sputters, error code P0304, and possible boost leak

I've been having trouble building boost--the car maxes out at commanding ~16 psi, whereas I normally top out around 22-24. Around 14 psi boost, the engine felt like it was getting hung up, sputtering. It has since gotten worse and happens sooner. The rough running of the engine appears at low speeds ...