Technical 2002 2.8 jtd Turbo wastegate actuator not moving

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Technical 2002 2.8 jtd Turbo wastegate actuator not moving

zombieites

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Can anyone help regarding turbo wastegate, had a new one fitted and also had turbo serviced , but for some reason , the actuator is not moving enough under turbo pressure, van is very sluggish to drive, can only think there must be a leak, wastegate has has been tested with air, and moves ok, any ideas
 
Can anyone help regarding turbo wastegate, had a new one fitted and also had turbo serviced , but for some reason , the actuator is not moving enough under turbo pressure, van is very sluggish to drive, can only think there must be a leak, wastegate has has been tested with air, and moves ok, any ideas

The actuator opens the wastegate when the boost pressure is high. If its sluggish your boost pressure is low so it shouldn't open. Check air filter isn't clogged, check hoses from turbo compressor to intercooler and intercooler to intake for splits, loose jubilee clips, check intercooler for damage.

You need to burn fuel to spin the turbo to generate boost, so if you're down on fuel due to malfunction, incorrect sensors outputs etc then you'll be down on boost. Are there any other symptoms.
 
Not really other than previously stated , poor performance, can faulty turbo boost sensor effect boost itself or maf sensor at airbox ?, have heard you can disconnect turbo sensor to see if any change, is this possible to do
 
One other thing to mention, once engine warms up a low whine appears from engine at 55 to 60 under load, stops when you go off pedal, might not be related
 
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