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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-18-2014, 01:41 AM   #1
DazzHD
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Join Date: Mar 2014
Location: Zimbabwe
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Help!!

Have an M54 engine, that when you rev it seems really sluggish? Have checked everything from the cat converters, to the fuel pump and filter, plugs and air filter....everything seems to be ok? When she idles its like theres nothing wrong at all, really smooth actually. No faults are showing on the diagnostic machine aswel so im pretty stumped at the moment. Can anyone help please?
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Old 03-18-2014, 01:55 AM   #2
dardarwin01
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Intake boots, throttle body a leak in it's system. Leaks can affect throttle response do a smoke test. You most likely get a bad result


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Old 03-18-2014, 02:00 AM   #3
DazzHD
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Will give it a try thanks. You think the crankcase vent valve could affect it?
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Old 03-18-2014, 02:04 AM   #4
dardarwin01
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If that was your problem it would be a whole different story, Zimbabwe does it snow or no


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Old 03-18-2014, 02:17 AM   #5
DazzHD
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No it doesnt snow, quite the opposite actually, pretty hot for most the year. Our fuel quality isnt the greatest here either, being a third world country and all. Have checked for leaks all around the intake manifold and throttle body, all seems tight and leak free
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Old 03-18-2014, 02:24 AM   #6
dardarwin01
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Mmmm gas can be the problem I'm not sure someone else can help you out it can be your gas. And it's a pretty bad time right since it's past midnight here in the west coast. I'll bump the thread back up in the morning so you can get a response to your concern.


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Old 03-18-2014, 02:27 AM   #7
DazzHD
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Thanks for your help, much appreciated.
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Old 03-18-2014, 02:28 AM   #8
dardarwin01
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Help!!

How you get a bmw in Africa
Edit don't expect for the best performance due to bad fuel. Dme will reprogram it self to a lower octane ratio and sooner rather than later you'll get codes for bad gas
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Last edited by dardarwin01; 03-18-2014 at 02:30 AM.
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Old 03-18-2014, 02:32 AM   #9
DazzHD
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Theres a huge market for imported cars here, can get just about anything you want! Living here does have its perks . And the "tuned" car scene here is pretty big aswel, and alot of guys tend to go with bmw
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Old 03-19-2014, 09:30 PM   #10
dardarwin01
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Free bump!!! Anyone care to share some light for op


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