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Error codes after diesel filter change

Every time the diesel filter is changed on my Citroen Xsara the engine manangement light stays meaning a loss of power when driven hard through gears and a top speed of 70mph with foot to floor.

The first two times the fault cleared when driven on motorway, put that down to air in electric pump! This time it's not clearing - fault codes P0235 and P0571 show as well as P1519, cooling fan status.

Asked on 12 September 2012 by paulp

Answered by Alan Ross
Well code P0235 is indicating a Turbo Boost problem
P0571 is indicating brake switch related problem
Whilst P1519 is indicating engine coolant blower motor control (relay)
Although not apparent you may want to check the EGR (exhaust gas recycling valve)
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