You have two oil pressure sensors on your coach. One is mechanical and runs to the analog gauge on the dash. The other one is digital runs to the DDec system on the series 60. My ddec oil pressure sensor had gone bad.. The ddec system would not let the coach Run and the an automatic shutdown every half a mile for zero oil pressure. I got it to run about a half mile before it would shut down and coast a half mile.. Then restart and do it again.. Limped to a diesel shop. They replaced sensor in 5 mins.. 60$ part.. Exactly what Newell diagnosed on the 24hour tech support