Engine shut down under boost - fail safe?

[bacillus]

The difference between the two is?

just the brand name?

Bosch supplies VW with the lambda sensor. There is a slight superficial cosmetic difference between the two but the sensor is identical. I should know as I'm using the Bosch one.   

[scopes]

Cheers Ayoub    will look into this first before thinking about changing!

Well today, I started of with a simple boost/vacuum leak test, the objective was to find bubbles from where I had sprayed the different parts with soapy water, no bubbles, none seemed to be sucked away either, I replaced the PCV gasket, nice new one in there now, replaced all the boost hoses in around the DV, serviced the DV, some fresh forge grease in, added a custom spacer in, only cost 10p, so thought I would try it,  re-fitted the throttle body hose, as I was not 100% happy with the fit, clips all tightened up, replaced the MAF sensor with a spare I had, scanned and out for a test drive, I have to say the car drives great    love it... But problem still there!

The next thing I would like to try, is cleaning the throttle-body flap, what would be the best to use?

My idle seems to tick over between 720-760 rpm's, can this be adjusted in anyway?

Thanks

[bacillus]

afaik there's no way to alter the idle speed even with vcds.

[rich83]

Engine speed sensor.

[scopes]

Engine speed sensor.

Does or can this adjust idle speed??????

[vRSAlex]

Engine speed sensor.

Does or can this adjust idle speed??????

Nope.  It reads the speed.  The idle is in the mapping.

Get rid of the forge valve and try a rev G.  Could also be a small leak from the brake servo pipes.

[scopes]

cheers Al

Will give that a try    Also where would be a good place to start searching for any leaks from the brake servo pipes ???

[bacillus]

Probably cheaper to just get a new hose if there is any doubts for just under £29. And you will need the small green plastic bung as well if you get a new hose part #  056129777
http://www.mk5golfgti.co.uk/forum/index.php/topic,79635.msg827917.html#msg827917

[scopes]

Thanks Ayoub, what can cause these to leak, would they be known to failure ?

[scopes]

Anyone ever figure this out yet as the problem is still here...