Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and is installed on the surge tank. It senses absolute pressure of the surge tank and transfers the analog signal proportional to the pressure to the ECM. By using this signal, the ECM calculates the intake air quantity and engine speed.

The MAPS consists of a piezo-electric element and a hybrid IC amplifying the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. Because 100% vacuum and the manifold pressure apply to both sides of the sensor respectively, this sensor can output analog signal by using the silicon variation proportional to pressure change.

ETC (Electronic Throttle Control) System. Repair procedures

Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output v ...

Manifold Absolute Pressure Sensor (MAPS). Specifications

Specification Pressure [kPa (kgf/cm², psi)] Output Voltage (V) 20.0 (0.20, 2.9) 0.79 46.7 (0.47, 6.77) 1.84 ...

See also:

Gear Actuator Assembly Repair procedures
Removal     • When gear actuator removing, set control shaft lever to neutral position. 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechnical Sys ...

Engine Control Module (ECM). Repair procedures
Removal When replacing the ECM, the vehicle equipped with the immobilizer must be performed procedure as below. ...

Roof Side Molding Repair procedures
Replacement     • Put on gloves to protect your hands.     • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with pr ...