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Old 01-11-2013, 07:33 PM
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hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
Join Date: Jan 2008
Posts: 15,120
Mein Auto: 1995 318is / 1993 325is
Fuel pressure regulator. It's on the end of the fuel rail. Has a vacuum line going to it, and a fuel return line running back to the tank. It bleeds off excess fuel pressure back to the tank at low speed. If it fails it puts full pressure to the injectors even at idle, and the engine runs way rich.
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Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
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