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Home >> Mercedes Benz >> 1993 >> 500E (124.036) V8-5.0L (119.974) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> ECM Calibration Resistor >> Service and Repair >> LH-SFI Variable Reference Resistor Modified
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LH-SFI Variable Reference Resistor Modified








Standard production breakpoints/Modifications/New features

As of 06 91 color-coded variable reference resistors have been installed. Models:
- With TWC green variable reference resistor
- Without TWC white variable reference resistor (USA California version does not have a variable reference resistor)


NOTE: On models with TWC and national version (J) it is not permitted to install a white variable reference resistor otherwise the secondary air injection pump will run constantly and the air pump may be damaged as a result.

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