[E92booost]

I took my map sensor out today and cleaned it up with crc mass air flow cleaner from Autozone, it was dirty with oil build up from the turbos (157xxx) let it dry and slapped it back in, the difference is night and day the boost comes in quicker,pulls harder, smoother idle. I highly recommend all n54 owners to do a clean on it from what I've researched the n20 map sensor and adaptor is another option for built n54s for more boost. Good luck (ps it's a easy job it's on the top back of the intake manifold and held in by two torx you have to remove all the cabin filter housing bs to access it, but fairly simple

[snedanator]

Thanks for that. Might give mine a clean🙂

[mweisdorfer]

Originally Posted by E92booost

I took my map sensor out today and cleaned it up with crc mass air flow cleaner from Autozone, it was dirty with oil build up from the turbos (157xxx) let it dry and slapped it back in, the difference is night and day the boost comes in quicker,pulls harder, smoother idle. I highly recommend all n54 owners to do a clean on it from what I've researched the n20 map sensor and adaptor is another option for built n54s for more boost. Good luck (ps it's a easy job it's on the top back of the intake manifold and held in by two torx you have to remove all the cabin filter housing bs to access it, but fairly simple

If you clean it as part of your regime when you do walnut blasting, it shouldn't be an issue

[E92booost]

@mweisdorfer honestly just got the car last weekend, still have to do a walnut blasting lol just wanted to clean that out in search of a fix for my hiccup at idle