Identify the INCORRECT procedure when charging and air conditioning system with a manifold gauge set and an accurate weigh scale.
A. Purge the yellow service hose from the refrigerant cylinder to the manifold.
B. Charge using liquid refrigerant through the red high pressure hose.
C. Finish charging with vaporous refrigerant through the blue low pressure hose with the vehicles compressor running until the correct charge by weight is installed.
D. Finish charging with liquid refrigerant through the blue low pressure hose with the vehicles compressor running until the correct charge by weight is installed.
Answer: D
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