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I had this intermittent boost issue where the car used to go in limp mode and wouldn’t boost above 0.3 bar.
Under continuous boost in 3rd/4th gear, it would cut fuel and throw you back in your seat.
After checking numerous things from wastegate, n75,boost leaks etc, it turned out to be the rubber vac hose from the inlet manifold which connects to the plastic green vac hose through bulk head - going to the ecu to the MAP sensor.
It was totally crushed (see pic)
Replaced the short hose and no more boost problems!
Under continuous boost in 3rd/4th gear, it would cut fuel and throw you back in your seat.
After checking numerous things from wastegate, n75,boost leaks etc, it turned out to be the rubber vac hose from the inlet manifold which connects to the plastic green vac hose through bulk head - going to the ecu to the MAP sensor.
It was totally crushed (see pic)
Replaced the short hose and no more boost problems!
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