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Code p0452 What could I do to insure the problem is the fuel pressure sensor

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 2005 Dodge Dakota V8 4.7L,

  1. The Fuel Level Sending Unit, or Fuel Level Sensor, is located in your gas tank with the Fuel Pump Module. The fuel gauge sending unit (fuel level sensor) is attached to the side of the fuel pump module. The sending unit consists of a float, an arm, and a variable resistor track (card).
  2. The Fuel Pressure Regulator is located within fuel pump module. The fuel pressure regulator controls fuel system pressure. The PCM cannot detect a clogged fuel pump inlet filter, clogged in-line fuel filter, or a pinched fuel supply or return line. However, these could result in a rich or lean condition causing the PCM to store an oxygen sensor or fuel system diagnostic trouble code.
Both of these sensors are connected with the Fuel Pump Module. Here is a diagram:

I’m happy to help further over the phone at

Posted on Mar 10, 2011


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Error code P0452 how do I repair 2004 Pontiac Aztek

This link may be helpful ...
P0452 EVAP Pressure Sensor Switch Low

If you are real lucky ... you may just have not 100% tightened your gas cap the last time you fueled up. But it could be the sensor at the fuel tank ... or a leak in tubing ... etc.
Good luck on your troubleshooting

Mar 10, 2018 | Pontiac Cars & Trucks

1 Answer

My 2001 saturn is trying to turn over and start but wont check engine light code p0452

P0452 Saturn Fuel Tank Pressure Sensor Circuit Low Voltage
"P0452 - Evaporative Emission Control System Pressure Sensor Low Input. Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tankicon1.png Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer).
First thing to do is make sure the gas cap is good and tightened properly. Then check the vacuumicon1.png lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight.
Barring a wiringicon1.png problem it can be a bad FTPS or PCM.
I copied this blog on the code p0452. So, check gas cap, check vacuum lines from fuel tank and trace the lines making sure there is no break. check wire plug on the fuel tank pressure sensor.

May 16, 2014 | Cars & Trucks

1 Answer

P0452 ,P0305 aurora 3.5

P0452 means fuel tank pressure sensor circuit low pressure. Possible symptoms:
- Fuel Tank Pressure Sensor harness is open or shorted
- Fuel Tank Pressure Sensor circuit poor electrical connection
- Faulty Fuel Tank Pressure Sensor
The code 0305 means cylinder 5 misfire detected. Possible symptoms:
- Faulty spark plug 5
- Clogged or faulty fuel injector 5
- Faulty ignition coil 5
- Fuel injector 5 harness is open or shorted
- Fuel injector 5 circuit poor electrical connection
- Ignition coil 5 harness is open or shorted
- Ignition coil 5 circuit poor electrical connection
- Insufficient cylinder 5 compression
- Incorrect fuel pressure
- Intake air leak

Read more:
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Aug 27, 2013 | 2001 Pontiac Grand Am SE

2 Answers

Code p0452 on 2001 grand am 3.4 lit

P0452 The definition is evap pressure system low. This mean it detected a no pressure but rather a leak, There is nothing wrong with the pressure sensor or wiring itself,Fist thing to check is the gas cap,make sure the seals is good shape, The hose connection are firm and clamped down,you basically have a evap leak

Nov 23, 2012 | 2001 Pontiac Grand Am SE

1 Answer

Whats the possible causes of a P0452 code on a 2001 Chevrolet impala?

Here is the definition of the code.

P0452 CHEVROLET Description The fuel tank pressure sensor responds to changes in fuel tank pressure. Vacuum is consider negative pressure. The information supplied by the fuel tank pressure sensor to the Engine Control Module (ECM) is used in order to detect vacuum decay or an excessive vacuum during the EVAP diagnostic routine.

The fuel tank pressure sensor signal voltage to VCM varies from a minimum of about 0.1 volts with pressure in the fuel tnk to greater than 4.0 volts with high vacuum in fuel tank.
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Sep 20, 2012 | Cars & Trucks

1 Answer

1998 chevy suburban p0452

Hi there:

DTC P0452 - Fuel tank pressure sensor- low voltage
Possible causes:Faulty fuel tank pressure sensor open/short in wiring harness between pressure sensor & VCMFaulty VCM

Below is diagnostic testing for both codes. You need to address DTC P0452 code first. In order to do full testing in order to determine problem you will need a DVOM(digital voltmeter) and a level 2 diagnostic scanner.Most of the testing can be done with the DVOM.

I strongly urge doing the diagnostic troubleshooting before replacing parts. It can just as easily be a short/open in wiring as a faulty part.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Mar 28, 2012 | Cars & Trucks

1 Answer

What is a p0452 code for a 2005 Chevy trail blazer

DTC P0452 - Fuel tank pressure sensor- low voltage.----------

Possible causes:------Faulty fuel tank pressure sensor.

  • open/short in wiring harness between pressure sensor & VCM.
  • Faulty VCM.
The fuel pressure sensor has to be checked and replace.-----------Thanks.Helpmech.

Feb 01, 2011 | 2005 Chevrolet TrailBlazer

2 Answers

1998 isuzu rodeo s/ls troble codes p0452


This fault code is related to a low pressure signal from your EVAP system which is to do with your purge canisiter system for the fuel vapours etc.

You could have a faulty sensor in this system.

Aug 13, 2010 | Isuzu Rodeo Cars & Trucks

2 Answers

Troubleshooting codes 1998 chevy truck S10 pick up were to find parts on truck ; codes p0171,p0401 ,p0452,p0131

p0171-System Adaptive Fuel Too Lean


p0452-EVAP Fuel Tank Pressure Sensor Low Input

p0131-Upstream Heated 02 Sensor Circuit

Hope That Helps.

Jan 15, 2010 | 1998 Chevrolet S-10 Pickup

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