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Old 10-11-2013, 11:21 AM   #13
Scooby Specialist
Member#: 72829
Join Date: Oct 2004
Chapter/Region: W. Canada
Location: Calgary, Canada
2006 WRX
2015 WRX


4-bar MAP sensor has different pressure vs voltage slope than the stock unit. You can't swap between them without reprogramming the ECU. There is a high/low voltage threshold table that need to be altered to prevent the CEL.
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Last edited by Airboy; 10-11-2013 at 11:29 AM.
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