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#1
11-07-2007, 08:12 PM
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p0170& p0173
had got both codes a week ago did a search and found the mass air flow could be dirty
cleaned mass air sensor with brake fluid worked for a week tonight again check code s and also found long tern fuel trim at 27% on both banks short term -2% Intake manifold pressure one time 13in Hg and 10in HG last time What I am asking is the mass air sensor going??? I could not find any vacuum leaks I also checked fuel pressure lookd right on replace fuel filter because it needed to be changed Is ther any electrical checks to do on the mass air flow sensor??? The vechile is a 2000 sl500 56000 miles any tips would be appreciated
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold) Last edited by myanoch; 11-07-2007 at 08:19 PM. 
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#2
12-02-2007, 10:38 AM
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cleaned the mass air sensor
ran for a few weeks back again long term 26% both banks short term -7% again Anyone got an idea ? searched old threads and still loks like mas sensor hate to jus change parts Any help would be appreciated Mike
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold)
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#3
12-02-2007, 11:26 AM
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.)
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#4
12-02-2007, 11:33 AM
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Terry Thanks for the help
I am going to check it out Again Thanks Mike
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold)
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#5
12-02-2007, 12:21 PM
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<
That is either a typo or did you actually use brake fluid ????????????????
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#6
12-02-2007, 03:30 PM
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Yes i did I read it in a forum no residue type
Did not make a difference works for a while then I get same code with log term trim at 30% The brake fluid is not the problem it may kill it but its not the cause I cleaned it before with contact cleaner same thing I just hope ots nt something else i hate to be a parts changer My friends wife had a enge light off intermittenly The dealer changed the mass air sensor said they fail at 50,000 same codes
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold) Last edited by myanoch; 12-02-2007 at 05:39 PM.
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#7
12-02-2007, 04:21 PM
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I think you mean Brake Cleaner , not Fluid....
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#8
12-02-2007, 05:39 PM
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You got me good on that one
I guess hitting 55 you loose your mind I should have used brake fluid on it maybe it would have worked Thats sad Thanks for the grammar help
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold) Last edited by myanoch; 12-03-2007 at 02:55 PM.
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