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Old 01-05-2013, 11:46 AM   #68
Scooby Newbie
Member#: 107170
Join Date: Feb 2006
Location: Bay Area
2002 ver 7 EJ207 WRX


You'll get a CEL running the USDM ECU because it is looking for the TGV's, which the JDM engines do not have, that's why you need to repin the TGV wires at the ECU and convert those wires to AVCS wires. Without repinning, the ECU will not "find" the TGV's and throw the CEL. I doubt you'll be able to pass the OBDII emission if the CEL is there.
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