 | Home > Puma (Tdci) > Increase fuel consumption |
 
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| Davefarmer Member Since: 29 Dec 2014 Location: Norfolk Posts: 19   
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How do folk how are we all??
I have a 07 2.4 90 defender with fuel consumption issues When first had it it retuned 30mpg no problems at all towing town work what ever pretty constant Very quickly last 3/4 tank fills it's reduced to 20mpg Had few error codes had a fit where by revving it hard would put it into limp mode and half power Garage cleared these for me said it the codes related to the turbo and injectors but weren't sure which injector Power now good where it lacked before they cleared the error codes but now it's only doing 23mpg Been back to my specialist garage they have looked it over and can't find any reason Iv cleaned out the maf sensor this was pretty chocked Cleaned map sensor Had new air flow mass sensor on the air box EGR valve seams to work just fine Can't find any boost leaks though will check more thoroughly nothing is obvious No dragging brakes Injectors are tight No obvious fuel leaks and drips, stand it on clean concrete over night only thing on the floor is my coffee as I struggle through the door!! Not got anything over silly fitted to it only mantech snorkel and steering guard other wise standard It's done 102,000 miles up to date with servicing but is due oil n filter change in about 2000miles Any ideas? Think I will change the oil n filters early and just see doesn't use drop of oil between services. |
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10th Feb 2015 7:24pm |
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| tatra805 Member Since: 16 Aug 2011 Location: Dolany Posts: 436  
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VCV
Had the same issues and similar on our other 2 2008 110's Once past the 100000 mark it seems the valve starts to play up I was barely able to keep it below 15l/100km in the end Will post more in short time in new topic New valve, pump relearn and pilot correction and everything back to normal 2cents  |
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10th Feb 2015 7:59pm |
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| andydef90 Member Since: 09 Feb 2015 Location: yorkshire Posts: 617 
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just a thought I know you said you had checked the hoses to the turbo but have noticed black smoke from your exhaust even a small hole will upset the fuel mixture
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10th Feb 2015 8:03pm |
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| Davefarmer Member Since: 29 Dec 2014 Location: Norfolk Posts: 19
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Thanks guys very helpful information
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11th Feb 2015 11:51pm |
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| dulwich man Member Since: 29 Nov 2011 Location: Dulwich Posts: 64 
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Try Archoil AR6600 turbo cleaner |
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12th Feb 2015 10:15pm |
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| fatman Member Since: 14 Jan 2014 Location: Athens-Greece Posts: 126  
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Hello tatra805. Any update on this? Thanks. |
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8th Apr 2015 1:26pm |
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| tatra805 Member Since: 16 Aug 2011 Location: Dolany Posts: 436
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Hi Fatman,
Now with +2000 km on the counter including a fully loaded 4day weekend trip i can confirm that the vcv solved: on mine - rough idle on startup at around 0° temps - brought back consumption to 9l/100km on mixed roads max speed 100km/h (90% non highway) with roof rack, rtt, and gear loaded (mind i have a BAS remap so +1.5 for non mapped according my stats) The white 110 had almost no load and a good driver (an economic one with over a million miles on his counter) and returned similar mpg, whereas the engine would cut out at cold start it now purred as a puma should with it's new vcv The 130 is a 2.2 and only added a couple of mm's of oil content during the trip... 11000 km on the counter and approaching 2nd oil change due to diesel DPF oil contamination   
 Click image to enlarge |
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10th Apr 2015 12:02am |
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