Diesel Data
: Automotive Repair
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Chevy Truck
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1999
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Express 1 Ton Van V8-5.7L VIN R
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data, Normal Values and Definitions
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Scan Tool Data Definitions - Powertrain Systems
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Post HO2S
Post HO2S
(Not Ready/Ready)
The scan tool will display Not Ready until the
VCM
has determined that the post
HO2S
is sufficiently warm for full operation.