Cuz I can't get my guage to read any higher than this. 0.15bar on maximum "acceleration" Is this the normal intake pressures of a normally aspirated system?

lol, normally aspirated is under 1.0 Bar pressure, same as you and me.

ah right.... confused now. Why is my guage only hovering around 0.15 bar when the turbo isn't helping at all? - 0.1 bar seems to be the average, 0.15 bar max.

SOOOO glad I got a 2.5 bar guage fitted.

Where is it plumbed into, the inlet manifold?

And is your turbo working yet?

Yeah - very well secured into metal part of inlet manifold - Even a good tug wouldn't release it. - turbo not working yet. Got PD130 boost sensor on way - hoping that cures it. Worried about other "short to B+" type errors I remember seeing relating to N75/N18. :(

Well if your turbo isnt working the reading 0.1 bar (nothing) isnt really suprising is it?

No - in fact its WORSE than a n/a setup. :eek:

These were the fault codes at last reading relating to engine.

17849 - EGR Valve (N18) Open circuit or short to ground - Intermiitent (EGR is blocked but don't know about "power" issue :confused

17957 - Boost pressure regulation valve (N75) Open or short to ground. New box is in and wired up right...

18000 - Altitude sensor / Boost pressure sensor - implausible correlation (GOT NEW ONE COMING)

18047 - Accelerator position sensor 1/2 (G79/G185) Implausible signal - intermittent (throttle appears to work as it should....)

18061 - Please check DTC memory of ABS controller. (eh?)

Its not worse than an n/a set up its the same.

Not many boost gauges read absolute including atmostpheric pressure.

Not many boost gauges read absolute including atmostpheric pressure.

Aha! THATS why. Its 1 hour to midnight and finally learned my new thing for the day. I still like the way the needle drops to -0.5 bar when the engine is switched off.

However the cars ECU does read absolute. Hence VAG COM tables can read upwards of 2,500 mbar at times. Needs to know this to work out altitude variations. (i.e atmospheric pressure is less up a mountain)

1mBar = 30ft.