After you retrieve the difficulty codes out of your car’s on-board pc, now you can test the sensors. All the time confer with your service guide for specs in your make and model car.
The primary bother code to test is the throttle place sensor (TPS). The TPS is positioned both on the aspect of the carburetor or the aspect of the gas injected fashions. It’s connected to the throttle body. Visually examine the sensor for worn insulation on the wires and a free or cracked connection. Disconnect the sensor.
With the digital volt ohm meter or DVOM within the 20K ohm place, join the constructive DVOM result in the sensor’s middle terminal. Join the detrimental DVOM result in one of many different sensors’ terminals. Slowly transfer the throttle lever till it’s on the wide-open place. Relying upon which terminal you related the detrimental DVOM result in, the DVOM studying ought to both improve or lower steadily. Launch the throttle lever slowly. If the DVOM studying will not be gradual and regular, however strikes as an alternative at an irregular tempo, the sensor is flawed and needs to be changed. Re-connect the sensor. Clear the difficulty codes from the ECM reminiscence by disconnecting the detrimental battery cable for no less than ten seconds.
Your subsequent bother code signifies a mass air circulation (MAF). The MAF sensor is positioned between the air cleaner and engine throttle body. To check, begin the engine. Take a screwdriver deal with and faucet the MAF calmly a number of occasions on the plugin aspect. DO NOT STRIKE THE SENSOR WITH FORCE, IT MAY CRACK. If the engine staggers, misfires, or stops operating, the sensor is flawed and needs to be changed. Clear the difficulty codes from the ECM reminiscence by disconnecting the detrimental battery cable for no less than ten seconds 센서모듈.
Begin the oxygen sensor performing check by eradicating the sensor from the car. The oxygen sensor is positioned both within the exhaust manifold or the exhaust pipe. Visually examine the sensor for worn insulation on the wire and a free connection. Begin the engine and let it run for about 5 minutes, then flip the engine off. Disconnect the sensor. Safe the sensor connector away from the exhaust manifold; tape the connector to the fender nicely, if doable. Flip the digital vote ohm meter to the millivolt setting, join the constructive DVOM lead into the sensor connector terminal, and floor the detrimental DVOM result in an unpainted floor. Restart the engine. Observe the DVOM studying. It ought to fluctuate between 100 and 1,000 mv (0.1 and 1.0 volts). If the voltage doesn’t fluctuate within the sample indicated above, the oxygen sensor is defective and needs to be changed. Re-connect the sensor. Clear the difficulty codes from the ECM reminiscence by disconnecting the detrimental battery cable for no less than ten seconds. Don’t set the digital volt ohm meter on the ohm meter setting to take action will injury the oxygen sensor.
The following bother code signifies manifold air pressure (MAP) sensor. The MAP sensor is normally positioned on the firewall or the fender nicely. Visually examine the vacuum hose and sensor connector for deterioration or free connections then disconnect the sensor. Join a jumper wire from terminal A on the MAP sensor to terminal A on the connector. Utilizing a second jumper wire, join the terminal in the identical method. Flip the ignition swap on. DO NOT START THE ENGINE. With the digital volt ohm meter (DVOM) within the 20-volt DC setting, join the constructive DVOM result in terminal B on the MAP sensor. Floor the detrimental DVOM result in an unpainted floor. Observe the studying; it needs to be between 4.5 and 5 volts. Begin the engine, let it idle. Hold the engine at idle and repeat the earlier step. If it doesn’t change from the ordinal ones, the sensor is defective and needs to be changed. Reconnect the sensor. Clear the difficulty codes from the ECM reminiscence by disconnecting the detrimental battery cable for no less than ten seconds.
That is how you can check a number of the sensors on a car. There are various extra sensors on a car. There are different methods to check them relying on the make and model of the car. Once you get able to retrieve bother codes or check your sensors, all the time test the service guide for specs and how you can check your sensors.
