Operation CHARM
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Mercury
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1987
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Lynx L4-116 1.9L VIN J FI HP
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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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Reading and Clearing Diagnostic Trouble Codes
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Reading Diagnostic Trouble Codes
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Quick Test Appendix (Detailed Testing Instructions)
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Reading Self-Test Service Codes
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Engine Running Test
Engine Running Test
At this time, a test of the EEC-IV system is conducted with the engine running. The sensors are checked under actual operating conditions and at normal operating temperature.