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Mercedes Benz
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1993
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300SD (140.134) L6-3.5L DSL Turbo (603.971)
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Exhaust Gas Recirculation
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Testing and Inspection
Exhaust Gas Recirculation: Testing and Inspection
Function Test, Electronic Idle Speed Control (ELR), EGR, P2-Control
This test should be performed if, in spite of a complaint, the impulse readout does not indicate a malfunction.