S6 timing

[HMS-S6]

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

[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]

First time ever it threw up a code today. Must have been part throttle as the lambda is ignored at wot.

00561 mixture adaption
12-10 adaption limit (mul) exceeded intermittent.

[newsh]

Yes, I reckon you've found another leak, somewhere around the MAF hose to WGFV to WG.

I forget, is the mechanical gauge tapped into a different place to the ECU?

[twoqu]

First time ever it threw up a code today. Must have been part throttle as the lambda is ignored at wot.

00561 mixture adaption
12-10 adaption limit (mul) exceeded intermittent.

HTH:

http://www.s2forum.com/forum/showpost.php?p=691460&postcount=32

[UrS4boy]

Not meaning to confuse the issue but...going back to load, dmitri once said of the R201 resistor:

R201 is MAF related. You either have RS2 calibration for your MAF or you have AAN calibration.
If you use the wrong resistor with the wrong calibration your LOAD will be wrong so too rich and too little timing or too lean and too much timing.

Which resistor to use depends on software...

Post 14: http://www.s2forum.com/forum/showthr...t=RS2+MAF+R201

[newsh]

If the resistor is wrong it's far worse than this trust me. And it wouldn't be wrong on a stock ecu either.

[HMS-S6]

Yes, I reckon you've found another leak, somewhere around the MAF hose to WGFV to WG.

I forget, is the mechanical gauge tapped into a different place to the ECU?

It's tapped into somewhere else bud.

[newsh]

It's tapped into somewhere else bud.

So is it reading different to the dash? (It seemed like that's what you were saying..)

[HMS-S6]

Oh no sorry mate. That'd not what I meant. Sorry! It's readimg smack on the same as the dash.

[newsh]

Oh no sorry mate. That'd not what I meant. Sorry! It's readimg smack on the same as the dash.

Ok cool time to have a look at that N75 plumbing then

[HMS-S6]

Right, boost checked it via the MAF hose to just over a Bar and via the turbo up to 2 bar and NOTHING. Not a loss or leak in sight. Had a very slight one from injector seals so changed them but still running very lean;

Wot at 3,500 14:1
Light throttle (0.4 bar) it's at 15:1 until 3,600 then you can feel it hang back massively at which point the AFR gauge goes to 17.8:1 like a switch had been thrown.

[UrS4boy]

How do you know that the Lambda O2 sensor that you are using to get these results is correct or has been calibrated? Have you tried another sensor (borrowed as a known to be good one)?

[HMS-S6]

The one in it is new VAG. I've tried the one that it replaced and the one out of my good running breaker. They've all acted the same. Had the pump out today too - clean as a whistle.

[HMS-S6]

Once the ecu is refitted is there a particular way to allow it to adapt or just drive it steadily?