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Old 10-15-2019, 11:59 PM   #1
kipps
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Join Date: Jul 2014
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Does the 91' suburban speedo require a pull-up resistor?

I've read that a 1k ohm pull-up resistor is required for driving stock tachometers off the LSx ecm's. I can't find any info saying whether or not the same thing is needed for the 91' electronic speedometers.

Can anyone confirm that the 91' speedometer will work fine with no pull-up resistor?
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1987 V20 truck, with a 2010 LMG 5.3, and a sm465 tranny.
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Old 10-16-2019, 08:37 AM   #2
Rich84
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Re: Does the 91' suburban speedo require a pull-up resistor?

No resistor required.
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