0
How can you test the mass air sensor in your 1999 Lexus rx 300?
Wiki User
∙ 13y ago
There are several different things you can do to test it. If your RX runs rough and you suspect the mass, you can unplug it while it's running and see if it runs better with it unplugged. If it does, replace it. You can also tap on the sensor with the vehicle running. If tapping on it makes the engine stumble then replace it. If you have an ohm meter you can check the Resistance across the sensor, but you would have to find out what the acceptable range is for the sensor. You can also take a volt meter to the output lead of the sensor. With the vehicle running and the volt meter on the out put lead you should get a steady voltage output at idle. As you increase throttle the voltage should increase with it. It should increase smoothly and with no "dead" spots. If it doesn't do this or you have a dead spot, replace it. Of course a "live" read from a scan tool would be ideal but most car owners don't have one. Good luck!
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How do you test an abs sensor?
To test an abs sensor for a Lexus ES you will need to use a multimeter. The multimeter will determine if the abs sensor works or not.
Can you test a mass air flow sensor on a 1998 Chrysler cirrus 2.5?
It does not have a mass airflow sensor.It does not have a mass airflow sensor.
How do you test a crash sensor for a 1999 vw jetta?
run into a brick wall at 40 mph
How do you test a 1999 daewoo nubira oxygen sensor when the car goes for the smog test it says obd2 fail?
obd2 means on board diagnostics failed not o2 sensor, 1st have to figure out why obd2 failed.
How do you check the mass airflow sensor on 1982 280zx?
Reassure the resistor of the hot wire anenmeter to determine if it has failed. This can be done at the same time that you test the oxygen sensor.
What are the release dates for Test Drive - 2002 Lexus GS 450H?
Test Drive - 2002 Lexus GS 450H was released on: USA: 2005
What are the release dates for Test Drive - 2002 Lexus ISF?
Test Drive - 2002 Lexus ISF was released on: USA: 5 April 2008
What are the release dates for Test Drive - 2002 Lexus LS460?
Test Drive - 2002 Lexus LS460 was released on: USA: 22 January 2007
How do you change the crank position sensor on 1999 Tahoe with 5.7 liter engine?
To change the crankshaft position sensor of the 1999 Tahoe, you must first disconnect the negative battery ground cable to avoid accidents. Then, remove the wire harness from the sensor, disconnect the wires, and pry out the bolt. Place the new sensor in the same area, replace the bolts, and reconnect the wires. Test the sensor to see if it is working.
How do you stop a 1999 excel smoking?
Bad rings? Bad valve? Do a compression test Bad head gasker? Lazy oxygen sensor?
What is the highest score for the IS 350 drive test?
Lexus IS350 is an specific model of a car. Therefore, there is no relation between the drive test a person have to do for driving and the Lexus IS350.
How do you test a Crankshaft position sensor on 2.2 l SFI cavalier?
how to test crank sensor
