Software Upgraded - Reset Your Password to Login
In order to log in after the forum software change, you need to reset your password. If you don't have access to the email address you used to register your GVR4.org account, you won't be able to reset your password. In that case, follow the instructions here to regain access to the forum.
tach signal white wire of the vr4 harness going to the tach should connect to evo5 ecu directly, AND the tach signal connection from your power transistor/tach interface going to the stock gvr4 ecu should be removed/disconnected/cut [white wire] .
in other words, gvr4 ecu pin 109 should connect to evo5 ecu pin 58 directly. AND gvr4 pin 109 SHOULD NOT have any connection to the stock power transistor/tach interface.
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