I drove my car today coming out of HCC, I was dring it at 4krpm, the oil pressure gauge was kind of stuck and it did not go up, but then later it was back to normal. I called Maztech, they told me that is probably the sendind unit, they also told me to install an aftermarket oil pressure gauge, the car got a new battery on friday, because my old battery was dead. I will put a new alternator soon, which autoparts have the best and cheapest ones.