I really don't understand how it works, I know it works with the turbo control solenoid valve and comes on at a certain speed/rpm but I don't know the details about its function. Can anybody explain this? Id appreciate any help

 

Have you looked here:

http://www.autosportracetech.com/RX-...erOverview.htm

and here:

http://www.autosportracetech.com/RX-...leshooting.htm

"The Turbo Control Solenoid / Actuator is one of the more complicated actuators as it requires both vacuum and pressure to operate properly. This actuator is controlled by two solenoids, (both are wired together to the one ECU output) one solenoid applies pressure to one side of the actuator and the other applies vacuum to the other side of the actuator. With pressure on one side and a vacuum on the other side of the actuator, the speed of the actuator is improved. "

?

 

Wow that answers my question... thanks!

 

 

For an answer to how it works, see above.

For an answer to what it does, the TCA opens the turbo control door that allows the secondary turbo to receive direct exhaust flow from the engine. When the TC door is closed the secondary turbo only receives the exhaust flow provided through the precontrol door. At transition the precontrol door has done it's job providing enough flow to prespool the secondary and it closes the precontrol and opens the turbo control at the same time to switch to full engine exhaust supply.

David