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.
Thermal Manifold Absolute Pressure Sensor
Thermal Manifold Absolute Pressure (TMAP) sensor consists of a Manifold Absolute Pressure (MAP) sensor and an integrated thermistor. Thermistor part of TMAP sensor is currently not being used. MAP part of TMAP sensor measures intake manifold air absolute pressure. PCM uses information from TMAP sensor, Throttle Position (TP) sensor, Mass Airflow (MAF) sensor, Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor and Crankshaft Position (CKP) sensor to determine how much exhaust gas is introduced into intake manifold through EGR system.
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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.