Checked the TPS voltage. with window switch bypassed; v=1.0 at idle postition with NMU activated and de-activated. WIth window switch on; v=1.22 NMU activated, 1.0 NMU de-activated. Hence the 1400 RMP idle with the NMU activated. Any guesses why it does this? Spoke to my N2O vendor and he said...