Posted by richard ryles on June 25, 2013, 7:09 pm, in reply to "Renault Megane 1.9 F9Q800 2005 - Code DF053 Fuel pressure regulation function #"Edited by board administrator June 27, 2013, 8:39 am
fixed hi everyone fault occurred on road retested high pressure pump it was giving 1600 bar moved on to mechanical pressure relief valve found it bleeding off pressure constantly to the point ecu picked up deviation and went into limp home mode thanks to all for responces
