S6 timing

[HMS-S6]

One other think I've noticed is that when its slowest/leanest it shows more boost on the dash too. I.e; on the mapped ecu if it's 2.3 on the dash it runs well, if it runs poorly it shows 2.5. On stock it's a similar story but lower figures. Leak from N75 to wastegate?

[HMS-S6]

So it shouldn't be audible? I'll check it out tomorrow.

[newsh]

Well I'm assuming that's what I can hear. I faint hissing that states and stops very quickly depending on throttle position. Usually when coming on boost.

I would say it's not normal.

So it's a very fast chopped tff-tff-tff-tff-tff-tff-tff?

That sounds like a leaky WGFV or a leak where the WGFV plugs into the MAF hose, this would also allow unmetered air in.

You can get a crack in the WGFV where the spigot joins the body.

Pressure test and soapy water

[newsh]

It stinks of unmetered air but I can't find a thing.

The only way for unmetered air to enter the system, once you're on boost, is via the MAF hose and the hoses that connect to it.

The MAF hose itself.
The hose to the WGFV
The hose to the DV and the DV itself.
The PCV system hose that goes through the cam cover and round to the one way valve.
The crankcase via oil cap or engine oil seals.

[HMS-S6]

Well I'm assuming that's what I can hear. I faint hissing that states and stops very quickly depending on throttle position. Usually when coming on boost.

[newsh]

Is it normal to hear the boost/vac of the N75????

Explain what you mean by this please.

[HMS-S6]

It stinks of unmetered air but I can't find a thing.

[newsh]

It's only 3 weeks old dude.

The connectors are 20 yrs old.

[HMS-S6]

Is it normal to hear the boost/vac of the N75????

[HMS-S6]

It's only 3 weeks old dude.

[newsh]

Clean the connections to the Lambda probe?

[HMS-S6]

Lean again today all of a sudden. 14:1 AFR. F**k it.

[Error404]

All wear & tear items that were probably sub-optimal

[HMS-S6]

Some of the things I spent on we're a waste of money but frankly, some stuff I don't regret. For example, silicon boost hoses, TFSI coil conversion, MAF pins in the plug for example I don't. They must have contributed to a slightly future proofed, well running car.

[HMS-S6]

Thanks :-)