535i - HPFP replaced
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Joined: Aug 2007
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From: Boston, MA
My Ride: 2008 535i 6MT
On Saturday while accelerating got the infamous engine malfunction icon in the dash and the reduced power message on I-drive. Tach went from 2K to about 4K. Pulled over and shut off engine and restarted. Icon and message went away. Yesterday, same icon and message appeared while going to work. Aborted work route and dropped car at dealer. HPFP replaced today and all is well. 25K mi on odo. -933 p/n HPFP installed. Had the DME reprogrammed back in July which fixed the long cranking issues that had developed. Running fine till Saturday.
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Joined: Jan 2010
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From: Houston, TX
On Saturday while accelerating got the infamous engine malfunction icon in the dash and the reduced power message on I-drive. Tach went from 2K to about 4K. Pulled over and shut off engine and restarted. Icon and message went away. Yesterday, same icon and message appeared while going to work. Aborted work route and dropped car at dealer. HPFP replaced today all is well. 25K mi on odo. -933 p/n HPFP installed. Had the DME reprogrammed back in July which fixed the long cranking issues that had developed. Running fine till Saturday.
All I know is it better be replaced when I go pick it up or they are gonna hear an ear full. Oh and my odometer is reading at 31k, F#%* YOU HPFP that's all I have to say for now 
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From: So. Cal (SFV)
My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
hope it stays fixed...
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Joined: Aug 2007
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From: Boston, MA
My Ride: 2008 535i 6MT
It's a two step process now. Apparently a bunch of good HPFP's were replaced due to bad LPFP's. First, the LPFP output is checked and its output tested for maintaining pressure. If it passes, the DME is programmed to pressurize the fuel system early when a door is opened with the engine off. After reprogramming if there are further issues, the HPFP gets replaced.
Thread Starter
Contributors
Joined: Aug 2007
Posts: 827
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From: Boston, MA
My Ride: 2008 535i 6MT
Super Moderator
Joined: Jan 2008
Posts: 17,508
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From: So. Cal (SFV)
My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
Super Moderator
Joined: Jan 2008
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From: So. Cal (SFV)
My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
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From: NorCal
My Ride: 2008 550
DPE S7
CF Front Splitters
Super Moderator
Joined: Jan 2008
Posts: 17,508
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From: So. Cal (SFV)
My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
***FI=forced induction/turbo engine
***NA= Natural Aspirated engine