1750 TBi - turbo pressure
I always thought that turbo in 1750 TBi pulls 1.2 bar at all gears and revs. Now I discovered that it changes with gear and also with engine speed:
- In 1st gear I see only 0.6 bar at all rpm
- In 2nd gear only 0.9 bar at all rpm
- In 3rd gear and higher I see full 1.2 bar from 1500rpm, but at about 4500rpm it starts to decrease to about 1 bar
Is this normal? How it behaves with diesel engines?
Normally I would probably never notice this, but just today I depressed the accelerator fully in 2nd gear, the car pulled hard, then I heard some "blow off" noise from the turbo and from this moment the engine pulled much weaker. I looked on the pressure dial immediatelly and saw only about 0.8bar. So I started to test it. There is no "check engine" light on the dashboard.
My warranty ends on Friday next week (done only 20 000 km), so if there is anything wrong, I should have it checked ASAP.
Thanks for all replies,
Last edited by petrv; 23-04-11 at 19:07.