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PorscheGAL PorscheGAL is offline
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Join Date: Dec 2008
Location: Central SC
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Originally Posted by 911st View Post


What are you doing here?

Is it cruse for the first part, then acceleration, then throttle lift?

What I think I see is a small lean surge at with acceleration, over rich at first throttle lift, a major lean spike from the metering arm over swing shortly after throttle lift, then stable AFR again.

Yes, I wanted to record a session of cruising, then acceleration and slowing (throttle lift.)

This is what my car usually looks like; unlike the drives over an hour where it leans out prior to load. This doesn't worry me as much as the leaning prior to load.

Also, my decel valve is still in place, but I have considerable "rumble" when decelerating. I have check all connections, and all looks good.

In all, my graphs looks different in how far I drive. Most drive last 30-40 minutes, but when I drive to Myrtle Beach it is a 3 hour drive oneway. About an 1 to 2 hours into that drive, I see a leaning to 14ish AFR.

I will look into the control pressure dampener link. Thanks
My minions:'86 911 Targa 3.4, '87 930, '05 Lotus Elise,
'19 Audi RS3, '13 Focus ST, '16 Focus RS
Old 09-15-2010, 05:56 PM
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