fix engine code P0222 throttle/pedal position sensor switch B circuit low

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I have recently got an engine code P0222 throttle/pedal position sensor switch B circuit low. I have changed my throttle body and my accerlartor sensor pedal, both from the dealer. I had an aftermarket intake and I replaced it back to the stock intake box and I still get the code. Is there anything else it could possible be. Like the ECM/ECU or a harness issue or something else. Please help