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Support and repair guides for the 2002-2008 Mazda 6. The first generation of the Mazda 6, also known as the Mazda6 and the Mazda Atenza (in China and Japan).

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How to fix code p0128 on a 06 Mazdaspeed6

Engine light code p0128

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Eduardo Acevedo P0128 should be a coolant thermostat stuck open. check this site for more information. Could be just a matter of flushing your coolant system and replacing the thermostat.

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Eduardo Acevedo will be eternally grateful.
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