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Unread 01-10-2010, 10:08 AM
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Smithers Smithers is offline
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Location: San Luis Obispo, CA
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Another problem area that causes the sputtering and surging at certain RPMs on the LExus SC and LS400 is the crank angle sensor. I've recently read of a guy who found his crank angle sensor wires to be in very poor condition. It's also funny that they are so small and weak yet they are in a fairly exposed position and are in a very harsh environment down there at the bottom of the engine.

So my advice is to rewire the crank angle sensor with some stronger wires and maybe sheeth them to give some added protection. I know mine is in great shape but if I had it off the engine again I would probably rewire it to make it stronger.
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