<VV> 828 miles this weekend - car running lean - advice appreciated
Guus de Haan
guusdehaan at me.com
Mon Oct 5 12:31:24 EDT 2009
Op 5 okt 2009, om 17:51 heeft BobHelt at aol.com het volgende geschreven:
> In a message dated 10/5/2009 6:04:33 A.M. US Mountain Standard Time,
> guusdehaan at me.com writes:
> On our trip to Germany it was almost on lambda 14,7 all
> the time (mine has a Safe Guard system with sensor in the exhaust).
> But on the way back home it started running leaner and leaner (near
> 11). Does anyone have an explanation what could cause this?
> 11 would indicate a rich mixture rather than a lean one. Are you
> sure that
> it's 11:1?
The 11:1 was a mistake. I should have written 16:1. It is indeed a
lean mixture problem. Someone suggested a vacuum leak so I'll check
for those. Would also explain why the knocking goes away when the
turbo comes on and delivers pressure, but that's just my assumption.
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