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Mercedes Benz
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1990
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300E 4MATIC (124.230) L6-3.0L (103.985)
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Calibration Resistor / Connector
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Description and Operation
Calibration Resistor / Connector: Description and Operation
Reference Resistor:
The EZL
reference resistor
plug activates a certain family of ignition characteristics within the EZL
control unit
. Each plug incorporates a fixed resistance.