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Old 08-11-2012, 05:04 PM
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Timbo Timbo is offline
Join Date: Aug 2012
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Lightbulb Nissan Navara Outlaw, 55 plate, poor running.

Nissan Navara Outlaw, 55 plate, poor running.

Codes P0089 = fuel pump, this could be a number of things, from sticking high pressure pump reg that is most common, the pump it's self, or a faulty pressure in the fuel rail, even major injector spill back.

Check with a scan tool or scope the fuel pressure wave and how much movement there is and the pressure at idle and 3000 RPM, if there is lots of movement at idle, the reg may well be sticking.

Remove and check the injector spill back, and have the pump checked, what I can say is this code is set when fuel pressure is at fault.
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