Location: Menai area of Sydney
Registered: June 2003
Re: 4age specs on map sensor
Sun, 21 August 2005 07:05
Map sensor is tested by voltage.
Red and black wires are 5v and earth respectively. (4.7v - 5.6v)
Yellow wire in the middle should read 0.3v-0.5v at low vacuum (100 mmHg)and vary up to 1.9v-2.1v at high vacuum (500mmHg).
So with ignition on and connector plugged into MAP sensor, suck on the vacuum tube and see if the voltage varies between 1/2 volt to 2v measured between the yellow and the black wire.