No Start

My wife went to start up the XJ this morning to head to work, no start. It would turn over just fine, but wouldn't fire. I went out there and looked at it. I noticed when I turned the key on, the oil pressure needle moved up to 0, but the battery and fuel needles didn't move. I can hear the fuel pump running. My wife said it stuttered on her in a turn while she was driving it last night. Any clues?

That sounds very much like the CPS.