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Old 05-24-2016, 07:39 PM
777stickman 777stickman is offline
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Re: 2000 C2500 stuck in closed loop.

Concerning the questions of OPEN vs CLOSED Loop. This is from a '99 Old Body Style service manual. Yours is an '00 Old Body Style so I would think it would be the same? This manual also shows the 4 wire HO2S.
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File Type: jpg OPEN LOOP001.jpg (269.1 KB, 10 views)
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