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Old 05-03-2014, 01:56 PM   #1
woode
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lean at idle only

Hey guys,
I am having an issue that I can't figure out:

The car is running lean at idle (16-19 AFR). As soon as I give it a little gas or drive, it reads normal. On cold start it also reads normal.

There are no vacuum leaks. I can't hear any and I went thru and checked all the vacuum lines.
There are no popping or crackling (I thought DI seal failure at first)

Logs
http://datazap.me/u/woode87/lean-idle?log=0&data=
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Old 05-03-2014, 02:07 PM   #2
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Need logs for sure. Get these at a minimal:
direct injection time, port time, short term trims, long term trims, rpm, manifold pressure, maf v, mass air flow (g/s), intake temp, coolant temp, oil temp, engine load, atmospheric pressure
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Old 05-03-2014, 03:24 PM   #3
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@nelsmar, I uploaded a log, I had to change it to .doc to upload. You can change it back to .csv after downloading.





Log 2



Trying to figure out why they aren't displaying full resolution.. these should work if you click them and click zoom


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Old 05-03-2014, 03:53 PM   #4
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Staring at the log, the only thing I see that correlates with the AFR is my DI time sort of

The car makes pops very occasionally at idle... I always thought DI seal failure was more often and didn't cause lean conditions though.. so I am assuming this isn't the problem?
This is turning out to be a pain in the ass. I need to drive my car back to NJ from Texas in 2 weeks and this happens..
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Last edited by woode; 05-03-2014 at 04:50 PM.
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Old 05-03-2014, 05:13 PM   #5
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Originally Posted by woode View Post
@nelsmar, I uploaded a log, I had to change it to .doc to upload. You can change it back to .csv after downloading.





Log 2



Trying to figure out why they aren't displaying full resolution.. these should work if you click them and click zoom


Might be easier to upload to datazap.me
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Old 05-03-2014, 05:48 PM   #6
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Logs
http://datazap.me/u/woode87/lean-idle?log=0&data=
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