BMW fuel pumps run at a very high pressure in order to properly supply the injectors with fuel. A failed pump will allow the car to crank, but wont kick over. Turner Motorsports carries Genuine BMW pumps that will have you back on the road in no time.
Adjust your fuel pressure as needed. Thanks to the 1:1 boost reference, fuel pressure will increase as boost pressure increases, ensuring fuel delivery remains optimal under all conditions.
A tired fuel pump or a restricted fuel filter can cause dangerous lean spikes under full throttle putting your high strung M engine at risk. The BMW E46 M3 saddle tank relies heavily on both a primary pump and an auxiliary transfer pump to keep fuel moving efficiently across the tank arch during cornering.
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