Normal Turbo Wastegate Position, help.

Questions specifically about a Diesel powered C3 (usually engine or fuel related problems)
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My Name: Xantia2000

Posts: 5
Joined: Mon Dec 07, 2020 5:13 pm
Model: C3 2013-2017 Facelift A51
Year: 2015 (15)
Engine Size: 1.4 (8v)
Fuel Type: Diesel
Mileage: 40000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: Yes
Engine name: DV4 diesel (70 PS)


Hi does anyone know the normal wastegate position for a 1.4 HDI 8v or where I could find this information ?.
I am trying to find the cause of an occasional not enough Turbo fault code. The only thing that seems to look strange on a scanner is when the engine warms up the required wastegate position drops to 54%. At the same time the actual wastegate position drops to 74%, a split of 20% (see attached photo). My older 2.0 HDI required and actual wastegate positions match at all times and why this looks strange to me. I believe the EDC17C10 modern engine systems can mask defects and even replace readings if there is problem but without knowing what the normal wastegate position is , have I found the problem or a red herring ?
Thanks for any help you can give,
My scanner photo of wastegate split
My scanner photo of wastegate split
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