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rb25det vct wiring


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Only way to have a delay on the main pumps will be to drive them using a GP output and have a timer based delay triggered from the lift pump drive.

However it is more normal to activate all pumps off the one fuel pump drive at the same time.

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  • 6 years later...
1 hour ago, tem said:

why don’t i have power at the vct plug?

The ECU only supplies the ground side, the +12V side comes from elsewhere in the car, most likely originally from the ignition switch or ECCS relay.  You will have to find a wiring diagram that matches your model if you want to troubleshoot the existing wire.

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