DTC P0450 Cadillac
Fuel Tank Pressure Sensor Circuit Malfunction
Fuel Tank Pressure Sensor Circuit Malfunction
Description
Engine started; and the PCM detected that pressure in the fuel tank was more than 12.05 H2O (22.50 mm Hg) for 5 seconds, or with the ECT sensor less than 91ºF at startup, engine runtime at idle speed from 2-10 seconds, the PCM detected the FTP sensor ind
Cause and Solution
FTP sensor signal circuit is open, shorted to ground or to VREF
FPT sensor VREF is open or shorted to ground (is P0100 set? )
FTP sensor is contaminated, damaged, skewed or has failed
Video Guide
Diagnostic Info
- DTC Code: P0450
- Brand: Cadillac