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Old May 31, 2008 | 06:23 PM
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Jim Galbally
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From: Ramsgate, Kent Drives: E39 530D Touring
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2bar map sensor reads -1 to +1 as 0v - 5v
3bar map sensor reads -1 to +2 as 0v - 5v

so each dige a different signal at different pressures, and the ECU can't tell the difference
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