Operation CHARM
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BMW
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1992
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318i Convertible (E30) L4-1796cc 1.8L DOHC (M42)
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Poor Fuel Economy
Poor Fuel Economy
Fuel economy is noticeably lower than expected. Customer should drive vehicle and note miles per gallon decrease.
POSSIBLE CAUSE
ACTION
Restricted exhaust
Check
Catalytic Converter
Testing and Inspection