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Old 09-18-2014, 05:14 AM   #4
btwilson86
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Its not uncommon for the OEM guage to quit working; all it takes is one brief moment of the signal wire shorting out to kill it.

You say you have an aftermarket gauge installed now? Is this a mechanical gauge (oil filled line running directly to the gauge in your car) or an electric gauge (sending unit like OEM with wire running to the gauge)?

Electronic sending units fail, sometimes fairly often depending on quality of parts, and this can be the source of your strange readings.

I would first verify your oil level is correct, then temporarily hook up a mechanical oil pressure gauge to verify your SunPro gauge is reading accurately.
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