|  | Home > Technical (L322) > Problem revs dropping | 
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| paul_h_8 Member Since: 09 Jun 2010 Location: North East - England Posts: 256    | 
 Help just this week I've replaced the fuel pump and MAF sensor believe it was or air sensor will check recipt. Since then when I'm at some lights sat in drive but foot on the brake the revs drop and then I get a puff of smoke when they come back up. Only drops for a second of so.
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|  19th Mar 2011 6:48pm | 
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| paul_h_8 Member Since: 09 Jun 2010 Location: North East - England Posts: 256    | Hard to tell what colour smoke whilst sat in car it isn't White like if turbo had gone more of just a puff of dark smoke.
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|  19th Mar 2011 7:26pm | 
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| BigJ Member Since: 16 Mar 2011 Location: North Yorkshire Posts: 247      | Quick check on the MAF. Unplug it and drive it. Does it solve it?
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|  19th Mar 2011 8:27pm | 
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| dan_uk_1984 Member Since: 12 Nov 2008 Location: Bude, Cornwall Posts: 4014      | Might I suggest you fill out your profile. If it wasn't for the mention of a turbo we wouldn't know whether it was diesel or petrol - and no clue on year.
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|  19th Mar 2011 8:31pm | 
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| paul_h_8 Member Since: 09 Jun 2010 Location: North East - England Posts: 256    | Alright John how's the 4.4 going?
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|  19th Mar 2011 8:39pm | 
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| BigJ Member Since: 16 Mar 2011 Location: North Yorkshire Posts: 247      | 
 Love it. Really love it. Find the airbox, work your way back to the engine inlet manifold. It's the sensor in line there. Should be a Bosch MAF. If it isn't a Bosch MAF or genuine MAF, then that's most likely your problem. Replacement MAF's are always crap... Used to have: 2005 FFRR 4.4 Vogue - BRC LPG Conversion & Remapped Now have: 2008 SSRR 3.6 TDV8 - HSE and plenty of toys | ||
|  19th Mar 2011 8:44pm | 
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| pretlove Member Since: 10 Feb 2011 Location: Bas vegas Posts: 1865      | id say its the M.A.F or air leak as said before unplug it and see how you get on ......also not wanting to hijack this thread but big j can i ask who did your remap and if it makes the range better on fuel or if not what gains can be had getting it done .....feel free to pm with reply as i dont want to hijack this thread ...thankks
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|  19th Mar 2011 11:14pm | 
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| lrdaft Member Since: 08 Apr 2010 Location: United Kingdom Posts: 60      | Turbo hoses can collapse check them first 2011 4.4tdv8 vogue black with black 
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|  20th Mar 2011 7:45pm | 
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| paul_h_8 Member Since: 09 Jun 2010 Location: North East - England Posts: 256    | Thanks guys. Garage managed to fix the problem free of charge.
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|  22nd Mar 2011 10:11am | 
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| elpeede Member Since: 09 Mar 2010 Location: Staffordshire Posts: 713      | 
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|  22nd Mar 2011 11:08am | 
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| BigJ Member Since: 16 Mar 2011 Location: North Yorkshire Posts: 247      | Glad you are sorted mate  | ||
|  25th Mar 2011 11:48am | 
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