Exhaust Smoke

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Check for cooling system malfunction (cylinder head or intake manifold gasket leak).
Check for fuel injector malfunction.
Check for fuel pressure regulator malfunction.
Check for fuel pulsation damper malfunction.
Check for fuel pump malfunction.
Check for intake air system leak.
Check for restricted air filter.
Check for spark plug malfunction.
Check for spark plug wire malfunction.
Check for PCV system malfunction.
Check for restricted or plugged fuel lines.
Check for worn engine parts.