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Old 11-22-2011, 05:47 PM   #1
2Fast4U1DAY
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Member#: 250152
Join Date: Jun 2010
Chapter/Region: MAIC
Location: Pennsylvania
Vehicle:
2006 WRX Limited
OBP

Default Climbing FKLC possibly due to colder weather?

Hi all. I noticed over the past few weeks that my FKLC was steadily climbing as the temperature got colder (was seeing -5.x under low load conditions) I rest the ECU via the AP last week, and its doing much better now (-.35 to -1.4 maximum corrction values). Could this be due to the colder weather leaning out the AFR's and causing knock? I boost leak tested from the turbo inlet, and everything downstream showed no signs of leakage, and I checked for anything loose in the engine bay and found nothing. Just seeing what you guys think about this. I can grab a log for you guys if you need it. Just trying to figure out why its doing so well now, but it was looking unhealthy there for a while...
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Old 11-23-2011, 09:23 AM   #2
Cobb Tuning
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Originally Posted by 2Fast4U1DAY View Post
Hi all. I noticed over the past few weeks that my FKLC was steadily climbing as the temperature got colder (was seeing -5.x under low load conditions) I rest the ECU via the AP last week, and its doing much better now (-.35 to -1.4 maximum corrction values). Could this be due to the colder weather leaning out the AFR's and causing knock? I boost leak tested from the turbo inlet, and everything downstream showed no signs of leakage, and I checked for anything loose in the engine bay and found nothing. Just seeing what you guys think about this. I can grab a log for you guys if you need it. Just trying to figure out why its doing so well now, but it was looking unhealthy there for a while...
Cold temps will not cause you to run lean. Your correction may have been a fluke if it was at very low loads and not necessarily something to be concerned about. I would keep an eye on it and try to get a log. Some parts of the country get crappy winter gas, but you would expect that to impact high load as well.

Bill
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Old 11-23-2011, 07:03 PM   #3
2Fast4U1DAY
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Member#: 250152
Join Date: Jun 2010
Chapter/Region: MAIC
Location: Pennsylvania
Vehicle:
2006 WRX Limited
OBP

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Quote:
Originally Posted by Cobb Tuning
Cold temps will not cause you to run lean. Your correction may have been a fluke if it was at very low loads and not necessarily something to be concerned about. I would keep an eye on it and try to get a log. Some parts of the country get crappy winter gas, but you would expect that to impact high load as well.

Bill
Thanks Bill! I will get a log up Friday.
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