AFR 16-17 @ full boost

[boyg]

It wasn't in 3rd and its 2nd gear, in fact I want to log more but the durmetric hang afterward, but I was shocked to see it has been to very lean at 16-17 AFR while boost starting from 3200rpm, is it very dangerous and should I talk to my tuner asap? Thanks

Log file is here
http://www.6speedonline.com/forums/attachment.php?...

[RWD cossie wil]

Yes, you are in serious danger of engine meltdown, you can drive the car but keep it off boost as much as possible.

Talk to your tuner, I would suspect somthing like a poor fuel pump output or duff fuel pressure regulator.

Have you had it mapped recently?

[boyg]

Yes, I have replaced Hybrid turbo in with a 5 bar fuel pressure regular, and then flash a renewed tune file in.

This log did @ 2nd gear, I believe it wasnt in full load yet, but does this affect the reading a lot?

[RWD cossie wil]

What sort of boost is it running? I can't advise you on specific mapping points, but if you are that high in AFR on throttle, then you need to address the issue before carrying on or you will melt pistons. From the cars I know about, anything over 12.6 is considered dangerous.

Why not give these guys a ring, they are Porsche tuning specialists & will be able to offer you much more specific advice.

http://www.nineexcellence.com/contact/contactus/in...

[boyg]

It is running 1.4 bar max, the tune was provided by Softronic...

Is it possible exhaust or header leak led this? As I heard some leaking sound at around 1500-1800rom from the back days ago, and I thought it is smth loosen inside the interior. As my exhaust is loud and drone a lot.