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Stalling when going out of drive

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Old Sep 24, 2014 | 06:56 PM
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Default Stalling when going out of drive

Lately I've noticed that the car wants to stall out when I first start up the engine and move the shifter from P to R. It wasn't so bad before, but now it actually kills the engine if I don't intervene. It also does this when going into D, but not as bad.

The car is an hci with a DBW throttle and SD tune. It idles perfectly fine in any gear.

I've attached the log of this happening, the only thing I notice is the voltage drops to the mid 12s and the injectors almost max out as the RPMs drop. Any insight?
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File Type: hpl
wtfstall.hpl (74.4 KB, 51 views)
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Old Sep 24, 2014 | 07:49 PM
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does it try to die in neutral?
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Old Sep 24, 2014 | 07:56 PM
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No, just D a bit and in R really bad.
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Old Sep 24, 2014 | 07:57 PM
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not sure then, if it tried to die in neutral i'd suggest a vacuum leak
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Old Sep 24, 2014 | 09:04 PM
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Could your IAC be malfunctioning?
...and you've just reminded me to call Slowhawk.
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Old Sep 25, 2014 | 05:48 AM
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I thought that too, but this only happens the first time after I start the car. Once I get past this, I can go from P to R all day long without as much as a hiccup.

Surely a bad iac would show up at other times too.
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Old Sep 25, 2014 | 06:21 AM
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Try to clean inside the TB where the IAC valve slides into... also, try cleaning your MAF with brake cleaner! The injectors shouldn't be maxed out when idling though... odd
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Old Oct 22, 2014 | 07:31 AM
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Bump, anyone else have any clue? Still dealing with this and I've tried adjusting a few things in the tune that seemed like would be of help but nothing changed.
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