Hello
As a good landrover owner, Í'm always curious how it's works. The last days I noticed some poor engine respons, not very hard, but it seems theres is something missing.... Looking at the turbo, and in the workshop manual I came with some questions, maybe someone has the answers. The defender Td5 MY2002 workshop manual speaks about a Garrett GT20 turbocharger with an electronically controlled wastegate modulator. Looking in the engine bay, I see the a turbo, but no wires. Only a smal pressure hose from the activator to the big tube between the turbo and the intercooler. No relays or other electrics. How does the ECU control the turbo? Or is there no control, just a sort of balance between the exhaust pressure and intakepressure? Looking in the elcetrical diagrams I cannot find a turbo, regulator or something connected to the turbo.
The manual (chapter engine management system, page 27) speaks about control signals to the wastegate modulator. The ECU controls the amount of boost pressure..... (just for sure, I did'nt see any small pressure hoses on the ECU under the front seat......)
last question, is it possible the move the turbowastegate linkage by hand? (with engine off) Just for checking, it isn't stuck. and with little force? (I can't move mine......)
Tjalf Defender 110