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.
Description And Operation: Description
The T-map sensor integrates:
- An NTC (Negative Temperature Coefficient) sensor to measure the temperature of the intake air.
- A pressure sensor, comprising a Wheatstone bridge screen-printed onto a ceramic membrane.
The aspirated air temperature and pressure sensor is used by the Powertrain Control Module ECM to:
- Calculate the pressure in the intake manifold downstream of the throttle.
- Calculate the temperature of the air in the intake manifold downstream of the throttle.
This information is used by the Powertrain Control Module (PCM) to define the quantity of air aspirated by the engine; this value is then used to calculate the injection time and ignition point.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.