assuming i am testing the correct plug (the ONLY three point adaptor on the front of the fuel distributor pump) then the top, is 0v, the middle fluctuates between 1.1 when idle - to 1.4 when accelerating, then .9 when taking your foot off. and the bottom (which I thought should be 12v) is only 4.76 v.

now Im just confused.

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1971 280SE - The S Class
1974 280CE - Sterling
1988 300E - Stanley