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Lexus
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2007
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LX 470
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Repair and Diagnosis
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Engine Performance
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Engine Control System (2UZ-FE)
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SFI System
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DTC P1613 Secondary Air Injection Driver Malfunction
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Component Operating Range
Component Operating Range
COMPONENT OPERATING RANGE
Diagnostic signal duty ratio from air injection control driver
70 to 90% when secondary air injection system is operating
and
0% when secondary air injection system is not operating