LEMON Manuals
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XJ8 Base
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Engine Controls - Self-Diagnostics
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Diagnostic Trouble Code Identification
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DTC P0066: Air Assist Close Valve Circuit Malfunction
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Possible Causes
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Possible Causes
AACV power circuit failure.
AACV ground circuit fault.
AACV to ECM pulse width modulation drive circuit open, shorted or high resistance.
AACV failure.