Does this imply "Your boost sensor is fooked!" ?? :confused:

Car has been acting very oddly in the last 2 days. The exhaust has sounded much more rawty and boost has been very odd with it acting like a "semi-limp" mode - NO JOKES! :P and it was not boosting lower down like it should - lots of black smoke.

But today it went it into full limp mode with no boost and low fuelling. "safe mode" I guess. Vagcom came up with the fault in the thread title. now my boost sensor is currently held on with tape as the clip was knackered so this could have led to it's demise. Anyone able to pinpoint anything else? I have been running fine for about a week without the vacuum pipe from the airbox hooked up to the N75 - Possible link there? However it's doing the opposite of what it was doing before - then it was overboosting, now it's VERY much underboosting.

Oh, and on a side note, spent some of the morning butchering a vRS bumper. Have done the big mouth, tidied up the edge, getting it sprayed soon then meshing the mouth & headlight washer holes, then fitting the cupra splitter.

Use the search n00b!

i get that code on cold mornings because the VNT vanes stick...

could be the above, a boost leak somewhere, or problems with the N75

You would get a different code if the boost sensor was dying.. the ECU correlates the MAP sensor reading with the ambient pressure reading.. ive had a MAP sensor fail on me because of its positioning in FMIC pipework meant that oil collected in the sensor.