hi all

Driving home 2 days ago and car went into limp mode and restricted performance mode flashed up. Didn't drive to today and straight same error and limp so when straight to my indy. Making a whirring noise when you rev, so did a smoke test. As took off air filter it has oil in it so one of them thought turbo had gone. Luckily the boss Indy said seen this before and not turbo, sticking pipe, and after looking at it he diagnosed faulty crossover pipe.

Getting it all gone Weds so all good and glad as had heart attack when the one said turbo gone 😲 what j meant to ask was how would the faulty cross over pipe cause oil in air filter ? Guessing it because it sticks it shoots oil back up ?

Any ideas please as just curious.

TIA

Crossover pipe would not cause oil in the air filter...

That's usually a sticky TSOV, or excessive oil in the secondary turbo drain pipe, of which the former would cause RP to be logged...

Crossover pipe would be an audible noise, with a P1247-00 code being logged

Thanks for the reply. Yeah definitely get an audible noise on revs as revving down as such.

So the oil in air filter a different issue I should ask him to look at then?