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XJ8 Base
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Engine Controls - Self-Diagnostics
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DTC P1143: Air Assist Close Valve Range/Performance
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Monitoring Conditions
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Monitoring Conditions
Engine at normal operating temperature. Intake air temperature is more than 18°F (-8°C).
Drive and accelerate to 60 MPH. Release accelerator and coast to 37 MPH and ensure engine speed is 1000-3000 RPM during coast.