Saab 9.3 1.8T P0033

[alessioblaupunkt]

P0033 Turbo/Super Charger Bypass Valve Control Circuit

The boost gauge in the dash works ok.
The intercooler pipe become hard during acceleration.
The Bypass Valve has been changed, it's new.
The Bypass Valve works correctly.

The Boost pressure sensor in the intercooler has been changed.

Data provided with latest Launch

Live data: at idle
Absolute pressure: 0.64 bar
Atmospheric pressure: 0.7 bar
Boost pressure: 1.25 bar

Live data: at 2000 rpm in NEUTRAL
Absolute pressure: 0.3 bar
Atmospheric pressure: 2 bar
Boost pressure: 1.25 bar

Something is not right.
Boost pressure doesn't change and is always the same even with key off.
Atmospheric pressure CHANGE?!

Did Launch put wrong name to the labels??
I think they assigned the "atmospheric" to the "boost" and viceversa.

Both result with old and new sensor.

The fact that Boost pressure was always 1.25 bar is what get my hand pick up the phone
and buy a boost pressure sensor.

But when arrived, changed and tested it show the same result!

Dafaq Launch put me out of street.

At least the DTC is not here but be sure car will be again in the very next days.

What will I change this time?

[Meat-Head]

Do not quote me on this

seem to think there is 4 pressure sensors

VAUGUE MODE ON:-

look at intake manifold on what you call (lhd) the passengers side two sensors
or 2 sensors in one.

i put 1k resistance across it ran 10 mins same but different code

VAGUEMODE OFF