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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 11-13-2013, 03:22 PM
sim_simma sim_simma is offline
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Mein Auto: 2002 330i
Fuel Pressure = possible rough idle?

I recently replaced my fuel filter and noticed that the little rubber hose connected to it had a slit in it. Could this be the cause of rough idle and the car throwing lean codes? If so, how would I go about replacing it?
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Old 11-13-2013, 04:17 PM
ahull's Avatar
ahull ahull is offline
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Mein Auto: ist schnell! (03 330i SC)
Quote:
Originally Posted by sim_simma View Post
I recently replaced my fuel filter and noticed that the little rubber hose connected to it had a slit in it. Could this be the cause of rough idle and the car throwing lean codes? If so, how would I go about replacing it?
Could be as that regulates fuel pressure. Just buy some vac hose at parts store, cut to length and replace. Should just pull off filter. If other end goes to hard plastic line, you'll have to whittle/cut the old hose off it.
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2003 330i TiAg Sport Pkg ~90k miles
DIY MODS: AA Stage I supercharger, Meyle HD FCAs w Powerflex CABs, Bilstein shocks, Meyle HD Rtabs, Angel Eyes, Clear Corners/Markers w/ LEDs, LED tails, ZHP rims, Akebono pads, AUX input
DIY E46 Merit Badges: Sunroof resurrection, CCV, OFHG, VCG w/ VANOS seals, DISA, Cooling Refresh I, steering giubo, window regs, Magnetic Infandibulator (see wiki)
DIY On deck: Rear Diff bushing. UUC SSK, clutch job eventually, Wavetrac LSD

Last edited by ahull; 11-13-2013 at 04:19 PM.
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