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2003 LQ4 Tach Output Pulse

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Old 08-08-2011, 10:22 PM
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Default 2003 LQ4 Tach Output Pulse
Does this PCM send out a 4cyl signal or a 6cyl signal?
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Old 08-08-2011, 10:24 PM
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4 cyl
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Old 08-08-2011, 11:04 PM
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You positive? Cause my tach only reads right in the 6cyl mode. It doesn't make any sense to me.
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Old 08-08-2011, 11:59 PM
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what tach? My shift light is set in 4cyl mode
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Old 08-09-2011, 11:28 AM
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Its an autometer ultralite ll.
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