Matt Utton Posted May 12, 2012 Share Posted May 12, 2012 I have just bought a 2005 130 tdci mondeo ghia x and when acclerating over 3000 rpm the coil light comes on and either cuts out or goes into limp mode. i have checked the fault codes and they are P0401 egr and P0251 injection pump a circuit malfunction. The pervious owner had the injectors replaced and i have checked the mass air flow wires and they are clean and i have removed the egr and cleaned all the carbon from that but still the fault occors . any help would be great. Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted May 13, 2012 Share Posted May 13, 2012 I think you answered your own question. Injector pump is not keeping up with the job. I'd see a diesel expert to check the pump and injectors too. Quote Link to comment Share on other sites More sharing options...
mintalkin Posted May 13, 2012 Share Posted May 13, 2012 the two common causes for P0251 are a blocked fuel filter or an injector leaking-off excessive amounts of fuel, i would get these checked before going for the expensive pump, as stoney said a good diesel expert should find whats wrong. Quote Link to comment Share on other sites More sharing options...
Z3 MON Posted June 8, 2012 Share Posted June 8, 2012 Seeing as your getting an egr and fueling fault I would suggest the egr to inter cooler boost pipe is split, I would recommend removing it an checking it carefully Quote Link to comment Share on other sites More sharing options...
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