[csavaglio]

I had several sensors that read the same but much too high compared to the actual pressure on the ZR-1. The parts store one in my LT4 reads on the low side. I would go down to Harbor Freight and pick up a mechanical oil pressure gauge kit. It wasn't expensive and will give you some peace of mind knowing what the actual pressure really is. I want to say it was around 20 bucks for the kit was all the different fittings. The LT5 sensor's in an easy spot to get to to hook up the mech gauge to.

Just because the sensor doesn't look bad and is working, doesn't mean it's calibrated correctly. I tried 3 or 4 different brand sensors before I found one that was calibrated properly for the car and matched the mechanical gauge.