P-1456 - Fuel Tank Pressure Sensor Circuit Low

[Aaron Blount]

2014 Ram 1500 (4WD) 5.7L V8 MPI

I can not seem to chase down this code.

I've filled the EVAP system with the smoke machine and have found no leaks. Also, there are no other EVAP leak codes present.

When I run data, the Fuel Tank Pressure stays constant at -2.420 inHg. It never changes.

I know something is jacked with the pressure but I can't locate a sensor or connector anywhere.

 

[Tach_tech]

The fuel tank pressure sensor is located on the filler neck. It’s a 3 wire sensor. You should have 5V on the sensor feed and return circuits and ground on the third circuit.

 

[Aaron Blount]

The fuel tank pressure sensor is located on the filler neck. It’s a 3 wire sensor. You should have 5V on the sensor feed and return circuits and ground on the third circuit.

This was it! Thanks a bunch. I don't know why I couldn't find it in the wiring diagram but the sensor was bad. Problem fixed.

 

[thangster]

This was it! Thanks a bunch. I don't know why I couldn't find it in the wiring diagram but the sensor was bad. Problem fixed.

Hello I have the same code P1456 to replace the Fuel Tank Pressure sensor, had you replace yours already and was it difficult? Where exactly is the location of the FTP sensor, I been looking online and some say that it's on top of the gas tank is this true?

 

[RedSRT4Me]

Hello I have the same code P1456 to replace the Fuel Tank Pressure sensor, had you replace yours already and was it difficult? Where exactly is the location of the FTP sensor, I been looking online and some say that it's on top of the gas tank is this true?

Read what @Tach_tech just posted above

 

[Cwils80]

Hello I have the same code P1456 to replace the Fuel Tank Pressure sensor, had you replace yours already and was it difficult? Where exactly is the location of the FTP sensor, I been looking online and some say that it's on top of the gas tank is this true?

Did this fix your code? Just got the same code today, and this is gonna be my first thing to replace. Got under the truck and it's easy to see against the filler neck.

 

[stokjeep]

was the part y'all replaced a 4861959AC ?