Mazda 3 Service Manual: Air Filter Inspection
1. Verify that there is no damage, excessive dirt, or abnormal odor on the air filter.
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If there is any malfunction, replace the air filter.
NOTE:
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The air filter cannot be reused by cleaning it with water or compressed air.
General
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Air Filter Inspection [Mzr 2.0, Mzr 2.5]
Except for Mexico
Airflow inspection
1. Remove the air filter..
2. Blow from port A and verify that there is airflow from port B.
If there is no airflow, replace the air filter..
...
Other materials:
Knock Sensor (Ks) Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the KS connector.
4. Measure the resistance between KS terminals A and B.
If not as specified, replace the KS..
Specification
Approx. 4.87 megohms [normal tem ...
Uniform Tire Quality Grading System
(UTQGS)
This information relates to the tire grading system developed by the U.S.
National Highway
Traffic Safety Administration for grading tires by tread wear, traction, and
temperature
performance.
Tread Wear
The tread wear grade is a comparative rating based on the wear rate of the
tire when t ...
Instrument Cluster Inspection
Speedometer
Using a speedometer tester
CAUTION:
When only the front or the rear wheels are driven using a speedometer tester,
the ABS or DSC may determine that the vehicle speed signal is in error and the
engine cannot be stopped by the normal operation. If the engine cannot be stopp ...
