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you got a fair difference between the air mass actual and prescribed boost leak or faulty turbo or turbo related maybe, also the charge pressure is below what should be on idle,,, so when car is running up road at 2-3k revs foot hard down should have 2400-2800 charge pressure that is the boost pressure recorded from map sensor,,
if you pull the inlet pipe off turbo give the turbo shaft a wiggle will have under 0.1mm of play when hot also pull vac pipe off and push the shaft that controls the vnt in the middle of the turbo as such,, rule of thumb with those turbo's is 80.000 miles they tend to pack up when they do go totally can take out the motor with diesel over run,
 

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Engine momentarily cut out when accelerating, as if you have turned it off and on. Any ideas?

Thanks Ian
Hi stutter on acceleration can be caused by a dirty hot film air meter (map sensor) located in the air duct past the air filter can be cleaned with white spirit and air blown dry, do it a few times you will be suprised at the result if no result may be requires changing but expensive so read about testing them there is plenty of posts on the net good luck worked for me
 

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Discussion Starter #43
Eventually tracked the fault down to the dde relay! £11.50 after all the agro from the wife.
 

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Eventually tracked the fault down to the dde relay! £11.50 after all the agro from the wife.
would be about right all these modern cars are to complicated then add the parts sourced on a budget when makers make them see it all the time where something you would never think could have such a impact
 
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