C70 Convertible L5-2.3L Turbo VIN 53 B5234T3 (1998)
Catalytic Converter: Testing and Inspection
Fault-Tracing Information
Fault-tracing information
Poor acceleration, engine sluggish
Condition
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no Motronic 4.4 diagnostic trouble codes (DTCs) stored.
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no AW 50-42 diagnostic trouble codes (DTCs) stored.
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engine at normal operating temperature.
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the fault is permanent.
Possible source
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ignition retardation due to knock
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defective rotor/distributor cap.
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damaged ignition cables.
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blocked air cleaner (ACL)/air intake
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uneven compression
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low fuel pressure
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blocked exhaust system
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faulty sensor signals.