Citroen Despatch (2007 - ) - 05 1.9d Intermittant engine surging woes.

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Thu 2 Jul 2009 01:43
05 1.9d Intermittant engine surging woes. - boab67
Evening all,my citroen despatch van has developed an engine surging problem.Whilst driving in the mid speed range & accelerating the van seems to hold back as if its hunting for fuel & you can hear a loud crack from the engine as if the fuel timing is to far advanced followed by a brief cloud of smoke,it then clears itself & the van runs perfectly at higher speeds.Im led to believe the ecu & other various sensors controls the advance/retard fuel timing on the injection pump regarding this engine.Could it be a dodgy multiplug connection somewhere or has the pump solenoid shot its bolt?.One other thing,curiousity got the better of me so i disconnected the egr valve solenoid plug for a short stint along the dual carriageway & maybe its my imagination but the van ran better with no trace of the surging,pulled over connected egr back up and surging returned.The van has done 96k & all filters were changed at 90k.
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