GrimmSpeed Electronic Boost Controller EVO - Manual (Page 5)

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2. Remove both factory solenoids from bracket. Reinstall factory solenoid with the black
connector on the bottom of the bracket. You will not be reinstalling the factory solenoid with
the brown connector. Install GrimmSpeed bracket and solenoid above this solenoid using
supplied hardware. See picture.
3. Connect electrical connectors. The GrimmSpeed BCS utilizes the plug that the factory
solenoid with the brown connector used. You must connect the black solenoid back to oem
solenoid to avoid a check engine light although no vacuum lines will be connected to it.
4. Hook up vacuum lines to the GrimmSpeed BCS. You will be removing the 2 factory vacuum
tees. See Figure 2. Port 3 connects to a high pressure boost source (there is a vacuum nipple
on the turbo compressor outlet). Port 2 connects to the internal wastegate actuator vacuum
nipple and Port 1 should be routed back to the intake (where the factory BCS mounts). It is
recommended that a plastic zip tie is used to secure vacuum lines. The electrical is plug and
play with the supplied connector. Tuning: WGDC controls the actuator / turbo. Tuning to the
WGDC is required (approx 30% reduction in WGDC)
E.
External Wastegate(EWG) Installation