Quote:
Originally Posted by Diseasel300
An '84 M117 engine is not going to have emissions controls. No EHA, no O2 sensors, and none of the stuff that usually gives issues on the US models post-'85.
This engine will have the basic K-jet system and has different places to look for issues with idle control.
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MB gasoline engines delivered in the US from 1981 onwards have been equipped with either K-Lambda (81-85) or KE (86-91). Both versions have exhaust O2 sensing and feedback control of mixture to provide a stochiometric mixture to the catalytic converter.