R36 exhaust ... Blackish fumes

[snerlo]

Nah mate. Just makes me feel a little better about it! ��

[Umai Naa!!]

The stock ECU mapping is the culprit.

Have been told from a couple of owners who've had theirs re-mapped that it's less of an issue.

Intake clean every 15K, and a spirited run every now and then should help as well.

[snerlo]

How's the intake clean work mate? Is it a specialist thing to do?

[kamold]

Intake clean definitely works. Umai Naa!! did an intake clean for me last time he did a service on mine and after giving it the goolies to clean out was noticeably less smokey.
Prob due for another one as its back to usual now (and I have an aftermarket ecu map on).

Just an upper engine cleaner sprayed into the intake pipe behind (I think?) The maf.

I had some Subaru upper engine cleaner so used that. Plenty of suitable products from Liqimoly etc

Sent from my HTC One M8 using Tapatalk

[Umai Naa!!]

Yep, the Subaru or Liqui-Moly products work well.

Sprayed behind the MAF (slip the clamp back, and push the hose in between the MAF and the intake pipe), with the engine held at around 3,000rpm. It's usually a two-man job on these, unless you can rig up a longer hose. You'll probably need to clear the missfire codes out as well once you're done.

[kamold]

Been doing a little testing and I've found that at WOT there really isn't any smoke from mine at all.
Its when I give it about 3/4 or so and engine is loaded like going up a hill when it does a bit of an atmospheric belch.
So I know what I have to do now!