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Old 06-02-2019, 07:51 PM   #1
int77345
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Default ISS PRO TEMP READING EFFECTED BY HEAD LIGHTS ON ?

has any one else noticed their ISS PRO temp gage reading a hair higher with the head lights on. i can turn my lights on and the needle moves just a little higher. turn head lights off and it moves back down. not really a problem, just curious if any one else has noticed this ? or what could cause this ? maybe clean up the grounds? any idea?

thank yall for any information
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Old 06-03-2019, 06:51 AM   #2
Scoutboy74
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Default Re: ISS PRO TEMP READING EFFECTED BY HEAD LIGHTS ON ?

That might be a sign of a grounding issue in your rig. The gauges and their sender's operate along a set resistance range.
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Old 06-04-2019, 05:08 AM   #3
int77345
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Default Re: ISS PRO TEMP READING EFFECTED BY HEAD LIGHTS ON ?

thank you i thought a ground also.
i have the original ground from the battery to the block and also a ground from battery to the body. does the gauge it self have a ground also ?
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Old 06-04-2019, 06:40 PM   #4
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Default Re: ISS PRO TEMP READING EFFECTED BY HEAD LIGHTS ON ?

I made a 5vdc power converter for the oem gauge set and it did the same thing, only worse. Should have bought a regulator not a converter. I think what was happening is the voltage to the converter dropped when the lights were on and it over corrected. It was nice having the gauges read full scale while it was in.
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