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I have an 09 plate 159 1.9 16v JTDM.
The engine lacks power and if I rev the engine above about 3600revs the engine management light comes on and the car goes into a kind of limp mode. Restarting resets the limp mode but not the light.
The fault codes are
PO401 EGR valve
PO380 Preheating control unit
PO238 Turbo pressure
I cleaned the EGR valve by spraying with a carb cleaner and refitted it to find no difference.
My question is what else other than the EGR valve could it be. What turbo boost should I expect to see on the guage on the dash.
The engine runs well and has 40k miles.
 
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