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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E28 (1982 - 1988)

E28 (1982 - 1988)

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  #1  
Old 02-18-2013, 04:12 PM
FaithWorks FaithWorks is offline
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Mein Auto: 04 525i & 84 533i
1984 533i ICV

Hello. I'm in need of a idle control valve for my 1984 533i. Please PM me if you have one for sale or know someone that does. Thanks in advance.
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  #2  
Old 02-18-2013, 04:14 PM
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drivinfaster drivinfaster is offline
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have you tried cleaning yours?? what makes you think it needs to be replaced??



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  #3  
Old 02-18-2013, 04:44 PM
FaithWorks FaithWorks is offline
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Yes, I tried cleaning it twice. When I bought the car it was idling a bit high. I found a drilled piece of wood inside the hose that attaches to the icv. When i took it out it would idle up and down. Recently I replaced the fuel filter and inline fuel pump and now it idles rich. Disconnecting the icv and O2 sensor made no difference. No fuel comes out from vacuum line of fuel pressure regulator. Disconnecting the coolant temp sensor and oil dipstick made a difference. At this point I think the ICV s bad. Thanks for responding.
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  #4  
Old 02-18-2013, 04:49 PM
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drivinfaster drivinfaster is offline
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well, what makes you believe the car is running rich at idle?? the icv will not affect that so much unless it chokes the car at idle. in which case it would have a low idle and probably nto remain running or idle poorly.

have you checked the conditon of the plugs, as well as the fuel pressure?? i believe there are 2 fuel pumps on this chassis, but the overall fuel pressure to the fuel rail is what you check first. if it is out of spec then you would go from there to see what would be the cause.

many fuel pressure regulators tend to fail in the high position as well.



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  #5  
Old 02-18-2013, 05:01 PM
FaithWorks FaithWorks is offline
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At the moment the car idles poorly (especially when cold), I can smell fuel from the muffler and the smoke is black. Replaced spark plugs with new news when I bought car. Before I replaced the fuel filter and pump the idle was higher and no black smoke. I have not tested any fuel pressure or the regulator. Thanks for your time.
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  #6  
Old 02-18-2013, 05:34 PM
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You also have a cold start valve that is known for leaking. Check it carefully and check or replace your vacuum hoses as well, they all deteriorate over time.
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  #7  
Old 02-18-2013, 05:44 PM
FaithWorks FaithWorks is offline
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Thanks. I also replaced the cold start valve after I bought vehicle. Only replaced vacuum hose that attaches to fuel regulator. It's weird because all (but high idle) was working fine before I replaced fuel filter and pump. Like I said, now has low idle, burning rich and takes a long time to warm up. Why the PO placed the drilled wooden piece inside hose that attaches to ICV?
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  #8  
Old 02-18-2013, 05:51 PM
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Try contcting Andy (member ID: south26) by PM for an ICV, he usually has lots of parts available.
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  #9  
Old 02-18-2013, 06:17 PM
FaithWorks FaithWorks is offline
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I did contact Andy yesterday and he told me he was out of the icv for my car
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  #10  
Old 02-18-2013, 06:21 PM
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Try www.Vinesauto.com they have lots of used BMW parts
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  #11  
Old 02-18-2013, 06:33 PM
FaithWorks FaithWorks is offline
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I appreciate your help. I just sent them an email.
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