300SL (129.061) L6-3.0L (104.981) (1991)
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Air/Fuel Mixture: Specifications
AIR/FUEL RATIO
On/Off Ratio [1] ........................................................................................................................................................... Readout Oscillating at 50% ± 10%
[1] At Diagnostic socket, with on/off ratio tester, and 02 sensor connected. Reading should be within +10 of the value at 2500 RPM.
