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owners manual Mazda 5
owners manual Mazda 5 - year of production: 2005, 2006, 2007, 2008, 2009, 2010 - Mazda 5 I 1 owners manual EN
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from owners manual to the vehicle Mazda 5, year of production 2005 - 2010:
Fuel System 2.0 MZR-CD Engine
• When the required injection amount is small, the PCM outputs a short drive signal to the
injectors. As a result, the opening time of the injectors is short, resulting in a small
injection amount.
• When the required injection amount is large, the PCM outputs a long drive signal to the
injectors. As a result, the opening time of the injectors is long, resulting in a large
injection amount.
Injector Correction Factors
• The manufacturing tolerances of the injectors are taken into account by injector
correction factors. The correction factors are determined during injector production and
are labeled as hexadecimal numbers (seven four-digit blocks and one two-digit block) on
top of the injector connector.
• At the end of the vehicle production line the injector correction factors of the installed
injectors are programmed into the PCM. Hereby the PCM equalizes the injection amount
of the individual injectors in order to improve engine running, combustion noise and
exhaust emissions.
M5_01029
1 Injector correction factor 2 View from A
NOTE: After replacing one or more injectors, several steps must be performed to ensure
their proper function (refer to the section “Control System, Maintenance and Repair”).
01-50 Service Training Mazda5
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Mazda 5 I 1 owners manual
pages 69 - 75
Mazda 5 I 1 owners manual
page 72 / 344
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Mazda 5 I 1 manuel du proprietaire FR
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