For some time now I have noticed less and less charging pressure / power. I have just three quarters rash (0.75 bar) with the Stage1 control unit, with the original control unit I get only half rash (that would be about 0.5 bar). I also need a lot more fuel. I don’t come under 11 l. Also not with gentle driving and 120 km/h highway. Previously 9l standard (soft) and 8l was possible and less than 10l normal. The following was done: – LMM is new (Bosch), – CBV (Diaphragma) was leaking half a year ago – TCV was replaced with IPD (has curved), back to old original part – vacuum hoses new – charging air hoses new Can the Wastegate be tested in built-in condition, how can I check the TCV? Do you have all original Wastegate and TCV (solenoid) in it? Or am completely in the wrong place looking and my cat is clogged, or the loader is after less than 400’000 km by. Gruss Roland