P0238 turbo pressure signal 1.6hdi Peugeot 307

[muresan504]

I still haven't solved the problem, and it exasperates my brain when the check engine lights up during strong accelerations, overtaking.I assume a gas leak at the exhaust manifold, and I want to replace the gaskets, can the gas leak at the exhaust manifold trigger this fault code?

[GiveMeABreak]

As you've changed the turbo, you should be able to eliminate the last to items of the suspect list, so focus on the vacuum circuit. Check the Turbo control solenoid (39) on the diagram to make sure it is functioning properly and the vacuum pump.

[jakestar]

hi guys, were you able to fix the issue? i seem to have going on the exact same problem… engine light when accelerating with dtc P0238 and i also have a new turbo installed after the old one leaking slightly…
kind of clueluess what to do, thought of changing boost pressure sensor but during diagnosis it seems to catch the correct values… but a weird thing is that during idle the values on the graph are not constant, its a changing pattern of different highs and lows