Mike's Workshop Manuals
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2007
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GX 470
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Engine Control System - DTC P0657 - P2A03
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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