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SENSORS test
SENSORS test
how i can test my Car oxygen sensor,Knocking Sensor, Inlet air mass sensor , Vacum Sensor , Pressure sensor & temp sensor that they r working in the right way or not
Can i test them through Multi meter by checking the resistance across the poins of sensors
1 Answer
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Can i test them through Multi meter by checking the resistance across the poins of sensors
Gari.pk User 849 asked on 17 Jun 2010 18:42:16 pm
1 Answer 
Zain - on 17 Jun 2010 18:42:28 pmWell, instead of going through all that heart ache, remove negative terminal of the battery to refresh ECU of any fault codes previously stored and just short the teminals (refer to manual or specify vehicle)on the Outlet market "diagnosis" before turning the key to the on position. Any sensors playing up will be shown by the corresponding number of times the indicator flashes. Keep in mind that some cars like the new Corolla and Nissan have a Two Trip Diagnistic function. For them, remove negative terminal, reconnect start vehicle for 60 seconds, remove again and check.
Most pakistani models come without and 02 sensor although some newer engines incorporate the knock sensor, Like 2NZ, 3ZZ and the 1ZZ, the 4A-FE neither had an o2 sensor nor the Knocker (i'm not referring to JDM lean burn engines).
To use a multimeter is another option, but checking snsors such as the Throttle position sensor and MAF can be a real pain as voltage varies over a broad spectrum.
Alternativly you could just wait for the amber "check engine" light to illuminate.
Why'd you wanna check em anyway?
Most pakistani models come without and 02 sensor although some newer engines incorporate the knock sensor, Like 2NZ, 3ZZ and the 1ZZ, the 4A-FE neither had an o2 sensor nor the Knocker (i'm not referring to JDM lean burn engines).
To use a multimeter is another option, but checking snsors such as the Throttle position sensor and MAF can be a real pain as voltage varies over a broad spectrum.
Alternativly you could just wait for the amber "check engine" light to illuminate.
Why'd you wanna check em anyway?
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SENSORS test
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