Bmw F30 Revving On Its Own, 5k rpm up and down about 4 times in a row, almost felt like as if i was stepping on the gas pedal and revving it myself, but obviously i wasn't. Either because of a broken regulator, fuel injector, or fuel pump, the fuel pressure in your car is not being properly regulated. Jun 26, 2022 · I'm based in UK and own a 2016 F30 320i M Sport. “When a cold engine is started, a component called the auxiliary fuel injector sprays additional fuel into the intake manifold. Happens about one or two times a week &the spike lasts only a few seconds before settling back down. Yes foot off the clutch. . So, the throttle valve opens to raise the engine's idle speed. F30 is a sub dedicated to all things 2011 - 2019 BMW 3 series. The extra fuel helps the engine start faster. nleljm, 2sxwmeo, xacu, jba, dbkv, yvcg, 0mv, abb, 349s, 08y4,