2002 ECU in 2004 WRX Carberry Precursor 0.00 volts. Please help!
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01-08-2013, 03:53 PM
03 Big 16G WRX
Is an 02 ECU plug and play with 04? My initial thought would be no. The flash block isn't even similar. The 03 and 04 ECU flash blocks are identical. I'm not an expert at this but this would be my initial question OP
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