latley my iol preasure gauge has been ready very low, it started off every once in a while reading low and progressivly getting lower, it now reads 0psi at idle and doesnt get to 50 psi till around 5k rpms, so vtec still engages.....people keep telling me that its probably just the gauge because more oil preasure gauges are garbage.....but what is a way to check this? and what would cause my oil preasure to drop like this?

 

need help fast