First off, ensure the battery is fully charged. The RC Valve operation can be affected by a poor battery, or even a lower state of charge.

1. Turn the ignition off, set the run switch to "OFF", and disconnect the TPS.
2. Turn the ignition back on, and set the run switch to "RUN".

Does the servo cycle to the HI position when you disconnect the TPS?
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Andy.
NSR-WORLD.COM

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