Technical No power and little to none boost

[Keith Spencer]

Sorry didn’t have the scanner to do b4 fix, this is what it is now

Looks not far off, but the measured looks a little bit below target. Difficult to see on the graph as I can't see actual numbers. You could be losing a bit somewhere, if no other leaks found with a smoke test I would have a good look at the blow off /pop of valve, make sure the actuator is working freely and that the rubber diaphragm isn't leaking.

 

[Keith Spencer]

Sorry didn’t have the scanner to do b4 fix, this is what it is now

If you could combine the target and measured on 1 graph next time it's easier to assess.

Sorry didn’t have the scanner to do b4 fix, this is what it is now

Oops posted b4 finished, was going to say, do the combined graphs whilst driving and floor the throttle. Initially you should see a suction then a steep rise as the turbo spools up. You should then hit a flat top to the rise as the pop off /waste gate opens and the design max pressure should be maintained more or less. When you overrun (throttle off) you should see excess pressure again and waste gate activated. The desired /measured pressures will never be exactly the same but should roughly be in unison. All revolves around the engine /turbo design /specs.
PS your MAP sensor is working good.
Finally how does the engine run /feel now to you?

 

[Fabs29]

If you could combine the target and measured on 1 graph next time it's easier to assess.

Oops posted b4 finished, was going to say, do the combined graphs whilst driving and floor the throttle. Initially you should see a suction then a steep rise as the turbo spools up. You should then hit a flat top to the rise as the pop off /waste gate opens and the design max pressure should be maintained more or less. When you overrun (throttle off) you should see excess pressure again and waste gate activated. The desired /measured pressures will never be exactly the same but should roughly be in unison. All revolves around the engine /turbo design /specs.
PS your MAP sensor is working good.
Finally how does the engine run /feel now to you?

@Keith Spencer thanks for the advise, do I need floor the throttle in each gear?

 

[Keith Spencer]

@Keith Spencer thanks for the advise, do I need floor the throttle in each gear?

Not really, just long enough to give the turbo time to max out on pressure and for you to observe all the behaviour.
Suggest you Google what the max boost pressure should be and compare Actual against theoretical.