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Gauge issues, speedo reads as tach

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Old 03-14-2014, 05:23 PM
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Default Gauge issues, speedo reads as tach

I was running a off brand harness before it burned up, during that time all the gauges functioned as they should.

Got my new harness in, soldered the necessary connections, however now my speedometer moves in unison with the tachometer.

I checked the ohms between both gauges signal wires, no continuities.

Using HP tuners and the live data feed, at park it thinks the truck is moving..

The place who made this harness is currently closed so I can't call them, any other suggestions to check before I yank the whole thing out again.

This is a standalone harness, and autometer gauges.

Old 03-15-2014, 05:50 PM
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Double checked the PCM plugs today, green/white wire in red 50. Really stumped here.



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