View Full Version : Under-boosting

06-15-2012, 12:12 PM
Despite having owned an SVO for about 2 and a half years, it's given me so few problems I haven't actually learned much about how it works. Last year I acquired a Fiat Spider, which has kept me quite busy, and the SVO was my reliable car (For when something inevitably broke on the Fiat).

I was driving the SVO Tuesday, and noticed that the car was lacking power. The boost gauge only went up to about 6psi (and I'm not certain is was even putting out that). The day before the car was putting out 15psi +. There doesn't appear to be any signs of the turbo blowing, and the car runs perfectly fine.

I'm quite new with the workings of a turbo, and I have no idea what could be causing this.

Anything helps,

JT Bernhardt

06-15-2012, 03:16 PM
Check for intake sire air leaks first.

Then verify the wastegate actuator is calibrated and working properly (like a weak spring).