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I am going to retest the O2 sensor by pulling a vacuum line to see if goes more lean and then forcing the engine to go rich. I am wondering if my mixture is way off. Also, is there anyway to test the crank position sensor? I hate to keep buying new parts before I test ensure they are truly bad. Thanks, Bob.
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1987 Mercedes 260E (W124) 213,000 miles
1971 MB 220 w/ 4 spd manual (W115) "Suzy" (sold)
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