I have Nissan Gloria 1999, with engine VQ25DD Neo-Di. Scanned the ECU, and error code was the throttle pos. Sensor not correctly adjusted. I have adjusted the throttle pos. Sensor myself, as correctly as I could. Now the engine running in idle speed 1.6, and in D pos. 1.2. The power is too large for PNP and running positions. Always crying lowdly my engine. Please help me how to adjust the idle speed myself. Thanks for your help.