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ls1miata
January 18th, 2012, 07:44 AM
did a full flash on a gmpp e67 and keep getting code p0604 ecm was tuned wth hptuners before
GMPX
January 18th, 2012, 11:32 AM
The ECM is corrupted somehow (as the DTC would indicate). Was it the 'E-ROD' ECM to begin with or the GMPP one? One is for pre 2009 ECM's the other is for the later 2009+ ECM's.
Someone got creative at GMPP with the E-ROD, there is a message in the flash that says "HOT RODDING A REVOLUTION IN LS3.E-ROD"
ls1miata
January 18th, 2012, 11:59 AM
is there a way to fix