How do you check and replace the MAP sensor on Acura Integra?

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Accepted Answer

Repair any breaks in the terminals and wires connected to the sensor's electrical connector if it doesn't fit snugly at the sensor and check for a good fit with the electrical connector. See which MAP sensor wires from different model colors. On Civic and CRV models the wire colors for power are yellow/red, for ground green/white, and signal to the PCM red/green. Yellow/Red supplies power to Integra models of 1994 and 1995 with 81881 engine, Yellow/White for 818C1 engine, White/Yellow is the signal to the PCM, Green/White is the ground. For 1996 and later Integra models, Power is yellow/red, signal the PCM red/green, ground green/white. Remove the MAP sensor connector from the harness and turn the ignition key on with the engine off, then 5 volts should be present between the harness side of the connector and the power wire; repair breaks and connections in the harness side if necessary. Detach from the throttle body away from the sensor, keeping the electrical connector attached by removing the mounting screws. After removing the sensor base from the throttle body, make a connection voltmeter betweet ae signal wire and body ground; the voltage should decrease as the vacuum increases. If readings are incorrect re preferably the MAP sensor. To remove, first disconnect the electrical connector from the MAP sensor, remove the sensor from the throttle body using screws, then install the new sensor in reverse of removal steps.

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