October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Without Scan Tool

Connect the voltmeter between terminals 1 and 4 of MAP sensor connector.
Terminal 4: MAP sensor ground

Terminal 1: MAP sensor output
Measure the voltage between terminals.

Fig 1: Identifying Manifold Absolute Pressure (MAP) Voltage Chart
Courtesy of KIA MOTORS AMERICA, INC.
If the voltage deviates from the standard value as shown in illustration, replace the MAP sensor assembly.