Feilkodeindeks · medium
P0450
FTP Sensor circuit malfunction
FTP Sensor circuit malfunction
Scope: 2.5L/3.0L gasoline · System(s): EMS OBD II · Factory MIL flag: 2
Common causes
- FTP Sensor disconnected FTP Sensor to ECM sense circuit: open circuit, short circuit to ground, short circuit to B+ voltage FTP Sensor to splice sensor supply circuit: open circuit, high resistance FTP Sensor to splice ground circuit: open circuit, high resistance FTP Sensor failure
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code
- Compare live sensor values vs expected (unplugged/biased sensors are common)