Celica GT Ltd Ed Convertible L4-2164cc 2.2L DOHC MFI (1997)
(c) Connect a voltmeter to terminals PIM and E2 of the ECM, and measure the output voltage under ambient atmospheric pressure.
(d) Apply vacuum to the MAP sensor in 13.3 kPa (100 mm Hg, 3.94 in.Hg) segments to 66.7 kPa (500 mm Hg. 19.69 in.Hg).
(e) Measure the voltage drop from step (c) above for each segment.
Voltage drop
(f) Reconnect the vacuum hose to the MAP sensor.