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With the throttle angle set properly, the last step is to adjust the TPS. With either a scan tool or a voltmeter connected to the TPS, adjust the sensor to .525 volt; .530 volt is fine. Shut the engine off. Reconnect all components and disconnect the battery ground cable for 30 seconds to erase the ECM’s memory. Start and drive the car for four to five miles, allowing the management system to teach itself the new settings. Do not be alarmed if at first the idle speed is very high; as the computer relearns, the idle will stabilize at the proper speed.