Does when the thing won't open and you throttle off going over the top of a hill so that commanded pressure drops to idle but the fuel rail pressure stays up at close to 2000Bar. I've got screenshots of it from the datalogger - it isn't releasing the supplied fuel to the injection pump as I understand it, the only device downstream on the rail is a fuel rail pressure sensor. It's enough of a fault to trigger P0089 "fuel rail pressure out of specification" DTC and a yellow "check powertrain" light, which displays for about 5 seconds then self extinguishes once the pressures correct and everything catches up. The biggest problem is about 30seconds after the dash light extinguishes the arse of a thing drops into limp mode, 2000RPM limit which usually occurs when you are in front of a fully loaded logging truck. The other possible issues are a buggered injection pump, leaking injectors or an air leak - there isn't any air in the system on clear hose test from the last investigation, injection pump appears fine as the issue is too much pressure and the injector duty cycles are fine. It starts and runs better than the one with a fully replaced injection pump, rail and set of injectors that it was compared too as the 'control' apart from the intermittent fault...
And no for this one too, one of the first of the PXII series (or the data plate is wrong - quite possible with Ford).
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