So for a few months now my car has had this issue that gets frustrating that I believe may be fuel related. Whenever I give it alot of gas it will start missing really bad. But when I slowly creep on the gas to wide open throttle it runs fine. The other night I popped open the hood and you could smell gas. It also seems like it is running rich....... Any advice on what it could be? The car is a stock 91 318is
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Originally posted by Good & Tight
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Fuel Pressure Regulator maybe. take off the vacuum line going to it. start the car. see if gas comes outFirst: 1984 318i
Second: 1987 325
Third: 1987 325is
Current: 1990 325i (Soon To Be 335i) -
Check your cap and rotor, spark plug cables and spark plugs (basically the secondary ignition system).I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃x ∈ S : φ(x)) → (∀x ∈ S : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".Comment
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three letters A F M.
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AFM and ignition do not make it smell like gas under the hood unless you have a gas leak too. If thats the case and your leaking gas and arcing a spark at the same time you better buy a fire extinguisherFirst: 1984 318i
Second: 1987 325
Third: 1987 325is
Current: 1990 325i (Soon To Be 335i)Comment
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Air flow meter is possible but would not respond well to gradual acceleration either and yes raw fuel smell isn't a good thing.
Yes a fuel pressure regulator could be suspect as well, test the pressure.Last edited by Liam; 03-12-2009, 09:34 PM.I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃x ∈ S : φ(x)) → (∀x ∈ S : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".Comment
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in addition to checking the fuel regulator, check all your fuel hose junctions, especially the cluster of 4 hoses that meet at the black plastic connector about a foot under the throttle body. This was leaking in mine to produce intermittent fuel smell. Check while running cause it evaporates quickly.Comment
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