2006 S80 threw 2 codes today and it hasn’t been driven much ( garage kept ) , it’s kinda my weekend Warrior and is in clean , excellent condition … P0193 - fuel rail pressure sensor A , circuit high input
P0101 - Mass Airflow sensor A
isn’t running poorly , the lights came on the dash suddenly as I was in my neighborhood not under any load 🧐
Anyone else experienced this simultaneously ?
thanks in advance 🤙🏽

 

I'd start by clearing the codes and see what returns, then I'd do a visual on wiring/connectors to the MAF and fuel pressure sensor.

Normally the P0193 points at the fuel pressure sensor being bad (telling the pump to work harder) or there may be a clog in the line (not really that common for a well maintained car). The P0101 usually points to an intake air leak or dirty MAF which doesn't seem to be related to the fuel pressure issue. You may have an electrical issue (ground wire corrosion, rodents chewing on wires etc) or experienced a voltage issue that set a false positive - thus the suggest to clear the codes and see what returns).