I noticed a strange problem on my motorcycle last night.
I have a 2006 ZX-10R and as I was leaving work, I noticed the oil pressure warning was not on. Normally, as soon as you turn the key to the on position the oil symbol and FI light will blink to indicate there is no oil pressure. This makes sense as the engine isn't running yet. However, last night the symbol and light were gone, as if there was pressure, even without the engine running. The bike had been sitting all day and was at ambient temperature.
I had no reason to suspect that there was actually a problem with the oil pressure in the engine, so I drove home. Upon arrival, I hit the kill switch and noticed the oil pressure light was working fine again. The symbol appeared and light flashed as the engine stopped and pressure dropped.
This morning, I left for work and same thing again. It didn't work when I left my house, but worked fine by the time I got to the office.
I'm hoping this is just a bad sensor, but the fact that it works on and off depending on engine temperature seems strange to me. If it was broken I would expect it not to connect at all and always show no oil pressure.
Any ideas if this is a common or likely issue, or what else would cause this sort of problem?