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  #1  
Old 5th October 2012
--Ice-- --Ice-- is offline
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Join Date: Oct 2012                                                
Location: Estonia
My Saabs: Saab 9-5 2.2Tid Autom.
Posts: 3
Default 2.2Tid fuel consumption

Hi there...
Can anybody give me good advice what to do? Something step-by-step what to try next.
My 9-5 (2004) 2.2tdi autom. estate is doing roughly 21MPG(11l/100km) in city, on motorway 38mpg (6.5l/100km). Last tank only in city, 19MPG!! 160k miles (260k km) on clock. Had a chat with diesel mehcanic and he wasn't very surprised about it... I've been looking around forums for a quite long time and no one has this high consumption.
I cleaned the EGR valve about 2 weeks ago (was ok), could that make a such a big difference?.
Changed the engine filter week ago. No efect.
Nothing isn't leaking, everything seems to be perfect...
SID is lying, fuel gauge (i belive) doesn't show accurately... All these figures are from tank-to-tank measured...

Today i plan to clean the EGR valve once again. Maybe i see something new...


Any good ideas what to do?
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  #2  
Old 5th October 2012
--Ice-- --Ice-- is offline
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Join Date: Oct 2012                                                
Location: Estonia
My Saabs: Saab 9-5 2.2Tid Autom.
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Default

EGR was ok. BUT. Could different air mass meter cause this? For interest we checked the production code on it and google shows that the one i have is mostly used in 3.0TDI-s. Since most diesel Saab's which are for spares are 3.0 I belive it might be a wrong part... Even WIS shows different data comparing 2.2tid and 3.0. Can anyone confirm the story? Or ECU is smart enough and will adjust with the meter?
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  #3  
Old 9th October 2012
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Join Date: Oct 2012                                                
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My Saabs: Saab 9-5 2.2Tid Autom.
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Any ideas?
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