Operation CHARM
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Mercedes Benz
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1990
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300SE (126.024) L6-3.0L (103.981)
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Fuel Pump
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Specifications
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Electrical Specifications
Electrical Specifications
FUEL PUMP
Current Draw
6 - 10 amps.
AIR/FUEL RATIO
On/Off Ratio
[1]
Readout Oscillating
[1]
At
Diagnostic socket
, with on/off ratio tester, and 02 sensor connected. Reading should be within +10 of the value at 2500 RPM.