Keep in mind any device you plug in to read the oil pressure, is reading it off the same oil pressure sending unit your dash gauge is using. So if your dash is reading lower than your device plugged in, you probably need a new stepper motor in your instrument cluster. That's a pretty common issue in GM clusters. Rebuilt clusters with new stepper motors and LED lights are readily available and not too expensive. I have a local guy that does a mobile service and it takes him about half an hour to replace all the stepper motors for around $150.
Hopefully since you changed the valley cover, you replaced the oil pressure sending unit while you're in there?
LSX Oil Pressure Sensor Relocation Kit https://a.co/d/h30NSnG
But due to age and mileage, I would do the o-ring regardless. It's more of a maintenance item on the lS engines at this point.
Hopefully since you changed the valley cover, you replaced the oil pressure sending unit while you're in there?
LSX Oil Pressure Sensor Relocation Kit https://a.co/d/h30NSnG
But due to age and mileage, I would do the o-ring regardless. It's more of a maintenance item on the lS engines at this point.
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