Start the engine and warm-up engine until coolant temperature is greater than 60°C (140°F).
Place the selector lever or shift lever in "P" or "N" position.
Turn the A/C switch to OFF.
All accessory switches OFF.
Read the data of intake manifold pressure sensor signal using Vehicle Diagnostic Interface or OBD-II general scan tool.
Note. Vehicle Diagnostic Interface For detailed operation procedures, refer to " READ CURRENT DATA FOR ENGINE ". OBD-II general scan tool For detailed operation procedures, refer to the OBD-II General Scan Tool Instruction Manual.
Ignition ON: Is the measured value 73.3 - 106.6 kPa (550 - 800 mmHg, 21.65 - 31.50 inHg)? Idling: Is the measured value 20.0 - 46.7 kPa (150 - 350 mmHg, 5.91 - 13.78 inHg)?
YES. Go to CHECK THROTTLE POSITION .
NO
Replace the manifold absolute pressure sensor.