|01-08-2010, 04:25 PM||#1|
Join Date: Oct 2008
Location: Seattle, WAVehicle:
2002 WRX Wagon
Getting engine knock @ low RPMs & also running lean after Stg2 Map
Below is the LearningView of my '02 WRX as of a few days ago. Has improved after applying the Stage 2 map.
Also replaced the spark plugs a month ago (NKG plugs).
Sept 2009 - Stock map
Jan 2010 - After Stg2 map & new NKG plugs
Only mod done is a full catless exhaust (up-pipe/down-pipe/3" catback). Still getting readings of low airflow. The filter is a couple years old, but not filthy. Also the stock ram-intake and snorkel was removed (Been removed for years).
Any pointers of what may need adjusted or suggestions to a different map would be quite helpful.
ROM used: A4SGE01C - MY02 OSECU Stage 2 r10.hex
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|01-08-2010, 05:48 PM||#3|
Join Date: Feb 2006
How sure are you that it's running lean? Wideband?
If so, post logs.
The learning view looks fine, you can remove a little timing in the higher loads.
Low load knocks are normal.
Should not have to rescale the maf if still on the stock intake.
|01-09-2010, 06:55 AM||#4|
Join Date: Sep 2001
Chapter/Region: South East
Location: F L O R I D AVehicle:
2002 USDM WRX
you might want to clean or replace air filter..
while you're there clean your maf sensor.