See also:

Under the Hood
Mazda3 models now offer a choice of engines:   Standard  148-horsepower, 2.0-liter four-cylinder engine that teams with a five-speed manual or five-speed automatic transmission Opt ...

Immobilizer System (with Advanced Key)
The immobilizer system allows the engine to start only with an advanced key the system recognizes. If someone attempts to start the engine with an unrecognized advanced key, the engine will not s ...

Engine Compartment Overview
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