Hi. I have a xzara picasso 1.6 hdi. The engine management light came on and showing "engine fault" on screen. I have took to a local citroen garage and on there diagnostic machine it showed along the lines of: short/open circuit to turbo boost pressure After several suggestions and changing components ie; map sensor, turbo dump valve it is still showing same fault shortly after fault is cleared Have you any suggestions what could be the fault as i am pulling my hair -out at the cost so far and not getting anywhere thanks David
Hi. mike. mileage is 113.000
due for a service shortly(oil change etc)
The diagnostic machine was a citroen one linked to a lap top
and and did not give a fault code just worded
could it be a partially blocked dpf filter causing the fault rather than turbo failure
Hello again David - My sincere apologies for the delay --No - not at all - I very much doubt that David - you would have at least a flickering Dpf light - It is true that the dpf's are something of an issue on these- but you always get the warning light - and too - your symptoms just dont add up to that David...Let me know how you get on - but what I have outlined to you above ( in my answer ) is very very common on these--Best Rgds, MIKE............ Please do click on the OK> Excellent service ratings for me as thats how Im credited for helping you - Thank You in advance for that ..Nb - You can get back to me anytime at all should you need / wish - clicking on the OK ratings service does not stop you at all - Thank you ..
Hi Mike, I have replaced turbo with a brand new unit including
oil pick-up & feed pipe + oil & filter change.
But is now showing code p0238 turbo boost sensor a circuit high.
I have noticed that the actuator is being drawn fully down and stays there
until you pull the air pipe off
Which seems opposite to another picasso i have.
I have also replaced the pressure valve (part No 1618 c9)
and tried another map sensor.
any suggestions other than a box of matches!!!