Engine Management Code P0171 on 4.2 V8 XF
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I have identified an engine management code DPO171 after connecting a scan tool to my 2008 XF 4.2 V8 petrol after the Engine Management warning light was illuminated on the dash .
The description read -- SYSTEM TOO LEAN ON BANK 1.
The RACV roadside assist mechanic said he suspects the fuel filter is partly blocked or there is an air/vacuum problem .
I have recently run the petrol tank very low down to almost empty a couple of times and suspect I may have picked up sediment which may have caused the blocking in the fuel filter .
I would appreciate hearing from anyone who may have experienced this same problem .
The car runs perfectly and I will change the fuel filter but if that doesn't fix the problem I would like to know what to do next .
The description read -- SYSTEM TOO LEAN ON BANK 1.
The RACV roadside assist mechanic said he suspects the fuel filter is partly blocked or there is an air/vacuum problem .
I have recently run the petrol tank very low down to almost empty a couple of times and suspect I may have picked up sediment which may have caused the blocking in the fuel filter .
I would appreciate hearing from anyone who may have experienced this same problem .
The car runs perfectly and I will change the fuel filter but if that doesn't fix the problem I would like to know what to do next .
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