View Full Version : 2004 Impala with a 3.8L
RD_Atlanta
09-13-2015, 01:17 PM
It has a 12583827 ECM with a YFBR application. After replacing or reflashing the ECM, can someone describe the Re-learn procedures which are required?
Thanks,
RD
1project2many
09-14-2015, 02:13 PM
There really is no "re-learn" process to go through. If you're trying to get the car to pass OBDII emissions testing then you want to do an OBDII drive cycle.
http://www.obdii.com/drivecycle.html
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