Automatic 3200 Dtc p1507 and p0500

timkee330ci

New Member
Messages
122
I was driving at about 60kmh, kick down one gear to reach 80kmh, rpm about 3500rpm. Then the throttle was lift off slightly. I expected the Auto box to shift up one gear and rpm drop back to 2000, but it didn't, it just stayed at above 3500 rpm. Then I totally lift off the pedal, rpm and speed drops continuously to idle.
When I am parked I retrieve the two codes 0500 and 1507, and p0700 which always reappear even after reset.
Any idea what's wrong? 1507 points to idle control valve, which I think doesn't exists on a 3200gt, p0500 is vehicle speed sensor.