Hi, we are totally new to the 1999 2.8 Ducati motor home having had VW T4s before. We have a minor fault with the low fuel warning light coming in when the tank is 3quarters full and staying on. Is this a common fault and an easy fix
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Technical Ducati 2.8 tdi low fuel light
- Thread starter zerominor
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Technical Ducati 2.8 tdi low fuel light
Well actually , yes , and errr yes .
Right well basically , the chances are , it's the plug connecting the sender unit to the van wiring . At present i'm in the process of doing quite major maintenance on my 2000 , 2.8 . Wiring is but one area . I have pulled loads of these plugs apart , and cleaned them up .
Now the sender unit is located in the top of the tank , with access being made through the cab floor . Left or right hand drive , the tank is located under the front nearside seat . Lift the carpet , or whatever floor coverings you have , and you should find an access panel , held in with screws . If you remove that you will find the tank sender under . DO NOT touch the fuel lines . Now be careful , as there's not a lot of room . You want the electric wiring plug , should be a square , sort of transparent white colour . There is a locking pin , so feel round the plug and find the bulge . You need to push that in to separate the plug , and the plug is likely gonna be stiff too . Mine was really stiff , just gently twist , side to side to break the seal , supporting the other side else you could break it away from the sender . Inside you will find two spade connectors , they need cleaning . Ideally the pins want removing from the plug (yes they do) , then giving grief with a dremel , but i'm a bit reluctant to explain that one , as these plugs are easy to damage , and you don't wanna go there .
Use a piece of wet and dry , do not use any heavier than 240 grade , and carefully clean the terminals . Before reassemble spray some electrical contact cleaner (available from most motorist discount centers) into the pin areas , both sides , and work the plug in and out . Be very careful , these plugs are difficult to work on , and the pins are very easy to bend , or even worse break.
Had similar problem with my 2000 2.8 dti. Cleaned the sender connector and lubricated with contact grease but made no difference. As mentioned above, located fuel gauge module behind lower dash (O/S on LHD), reflowed some of the solder joints but didn't help. As mentioned, the connector seamed to be the problem. If I remember correctly, its 6 way, with round male pins and 3 sided female contacts. Removed the female contacts 2 at a time and V. gently nipped them to tighten the fit, greased and replaced. So far so good, seams to be reading correctly, time will tell.
