mondeo_2009 Posted February 14, 2020 Share Posted February 14, 2020 Hi guys, still trying to chase this non start issue on a 2009 2.0 tdci. After having p0087/p0088/p0088 faults come up I've replaced the fuel filter as a first port of call. This hasn't solved it but my scanner is showing more than it did before. I had no pressure at all when cranking last time but now i have a very very low average 16-19psi. How can I tell if I have a faulty rail pressure switch or bad hp pump? Thanks guys Quote Link to comment Share on other sites More sharing options...
nicam49 Posted February 14, 2020 Share Posted February 14, 2020 Could even be injector(s) jammed open Quote Link to comment Share on other sites More sharing options...
Kevin#95 Posted February 14, 2020 Share Posted February 14, 2020 Fuel pump pressure control valve / regulator valve. Quote Link to comment Share on other sites More sharing options...
nicam49 Posted February 14, 2020 Share Posted February 14, 2020 By substitution.... or whip out the injectors and take 'em to a diesel specialist for them to test.. cost around a tenner each + vat usually. Taking out the pump to be tested is a bit of a job, (and costs around £100 just for a test) so cheaper bits 1st. Try to buy used parts as new prices can be stupid. 1 Quote Link to comment Share on other sites More sharing options...
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