Garrett vs Melett -Turbo Fault Diagnosis PSA Engines, Turbo Underboost, Peugeot, Citroen, Mini etc

I take a look at how to diagnose and fix a faulty turbo on all the 1.6 HDi engines used by Citroen, Ford, Mazda, Mini, Peugeot and Volvo. I DO NOT recommend a new Melett. Get a recon Garrett ! A look at how to check your vacuum and if you should buy a new Melett turbo or a recon Garrett turbo. The pressure mentioned was 5 & 6 Kilopascals, it seems it should be 50 or 60. New Melett from £250 plus vat. (not recommended) They clearly don't test their actuators. Reconditioned Garrett from £253 Plus vat & they want your old one. (I recommend this) I'm not sure of the correct 'minimum' vacuum pressure required for the actuator. Without variable geometry or with a faulty vacuum system, this turbo will not spin up and give you extra boost until you reach 3000 rpm. I wasn’t given a choice of a new Melett turbo or a reconditioned Garrett turbo. That was my first mistake, not asking or going to another specialist. The text about the 'turbo agent' should have read - 'In fairness to the turbo agent, they were helpful but only too ready to blame my car; even after supplying a faulty Melett turbo at £300 they still blamed my car' They fitted my 12 year old 'Garrett' vacuum controlled actuator and sent me on my way. They kindly sent me a new vacuum controlled actuator 18th March 2021, I connected it to my car and saw it has full travel with my 5 ish kp of vacuum. I have less power at low RPM compared to the 12 year old Garrett.