Manifold Absolute Pressure (Map) Sensor Inspection: Notes
NOTE:
- Perform the following inspection only when directed.
- The following vacuum values are indicated by relative pressure from the MAP sensor.
- Connect the WDS or equivalent to the DLC-2.
- Turn the ignition switch to ON (Engine OFF).
- Select MAP PID on the WDS or equivalent.
- Verify that the MAP PID (pressure) and barometric pressure are practically equal.
- If not as verified, perform the CIRCUIT OPEN/SHORT INSPECTION .
- If there is no open or short circuit, replace the MAP sensor.
- If as verified, go to next step.
- If not as verified, perform the CIRCUIT OPEN/SHORT INSPECTION .
- Apply vacuum of -25.0 kPa {-187 mmHg, -7.38 inHg}
to the MAP sensor, and verify that the MAP variation from that of Step 4 is approx. 25.0 kPa {187 mmHg, 7.38 inHg}.
- If not as verified, perform the CIRCUIT OPEN/SHORT INSPECTION .
- If there is no open or short circuit, replace the barometric pressure sensor.
- If not as verified, perform the CIRCUIT OPEN/SHORT INSPECTION .