Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Intake Manifold Pressure (Map) Sensor
The Manifold Absolute Pressure (MAP) sensor is used for the Speed Density air charge calculation.
The MAP sensor is physically integrated with the Intake Air Temperature 2 sensor. The MAP sensor has a specified range of 10 to 200 kPa. The voltage is electrically clipped between 0.3 to 4.8 volts,
| Vout=Vref * (0.0044736 * Pressure (in kPa) + 0.035263) | ||
| Volts | Pressure, kPa | Pressure, Inches Hg |
| 0.3 | 5.53 | 1.63 |
| 0.40 | 10.0 | 2.95 |
| 1.630 | 65.0 | 19.19 |
| 2.301 | 95.0 | 28.05 |
| 3.643 | 155.0 | 45.77 |
| 4.65 | 200.0 | 59.06 |
| 4.8 | 206.71 | 61.04 |
| DTCs | P0107 Manifold Absolute Pressure/BARO Sensor Low P0108 Manifold Absolute Pressure/BARO Sensor High |
| Monitor execution | continuous |
| Monitor Sequence | None |
| Sensors OK | not applicable |
| Monitoring Duration | 5 seconds to register a malfunction |
| P0107 MAP voltage < 0.19 volts P0108 MAP voltage > 0.4.88 volts |
| DTCs | P0109 Manifold Absolute Pressure/BARO Sensor Intermittent |
| Monitor execution | continuous |
| Monitor Sequence | none |
| Sensors OK | not applicable |
| Monitoring Duration | counts intermittent events per trip |
| 10 intermittent out-of-range events per driving cycle |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.