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97 civic LX P0453 - EVAP emission control system press sensor high///// P0450 - EVAP emission control system press sensor fault... How to fix? Car had no codes b4 i put new motor from a 97 DX,, the DX had no codes b4 swap ether

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  • Honda Master
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You have a fuel presure sensor or vacuum problem.
Check Gas cap as well.
You will need a multimeter for some tests.

Regards, Lee Davidian

A Four Thumbs up ^^^^ is appreciated for answering yourquestion. And please take the time to rate me by leaving a testimony. Thank you , Lee Davidian

Posted on Oct 10, 2010

  • Auto Repair Help
    Auto Repair Help Oct 10, 2010

    ok have it and will send more tomorrow, Lee

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1996 HONDA CIVIC P0450 EVAPORATE SYSTEM PRESSURE SENSOR,WHAT IS THE REASON OF THIS CODE,THE CIVIC DOESN'T HAVE FTP SENSOR.EMISION SYSTEM


The EVAP (Evaporative Emissions) System allows fuel tank vapors to be purged into the engine and burnt rather than expelled into the atmosphere as harmful emissions. The EVAP system contains a pressure sensor to check the integrity of the system. Periodically, the EVAP system performs a pressure test to check that there are no leaks in the system. It uses this sensor, also known as a fuel tank pressure (FTP) sensor to check for leaks. Basically P0453 means the PCM (Powertrain Control Module) noticed the EVAP Pressure sensor or FTP is indicating a higher than normal pressure (above 4.5 Volts) in the EVAP system. NOTE: On some vehicles the FTP is a part of the fuel pump assembly in the tank. Potential Symptoms There will likely be no noticeable symptoms along with this code other than the MIL (Malfunction Indicator Lamp), commonly known as Check Engine Light illumination. However, there may be noticeable fuel odors in some cases. Causes A P0453 DTC trouble code may be caused by one or more of the following: Open on FTP sensor signal wire Short to voltage on FTP sensor signal wire Bad FTP sensor Abnormally high pressure in fuel tank due to blockage in EVAP purge hoses or overfilled tank Loose/damaged FTP sensor connector Loss of ground to the sensor Possible Solutions Using an scan tool access FTP sensor value with Key on Engine off (KOEO). Normal value is usually somewhere near 2.5 Volts at atmospheric pressure (may fluctuate some due to altitude). It shouldn't ever be above 4.5 Volts. 1) If it is close to 2.7V with the gas cap off, the problem is likely intermittent. Using a Digital Volt Ohm Meter, measure the voltage on the signal wire while trying to induce the problem by wiggle testing all the wiring at the FTP sensor. If the voltage fluctuates when wiggle testing, check for connector problems; i.e. water in the connector, broken or chafed wiring. 2) If the value shown on the scan tool is above 4.5V, unplug the sensor (if possible) and check for voltage again. If the high voltage is still present when unplugged, inspect wiring harness for a short to voltage on the signal wire. If the high voltage disappears when unplugging the sensor, check for a good ground to the sensor and proper reference voltage. If you have a good ground and 5 Volts reference voltage, replace the FTP sensor since it's likely shorted out. Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0444 - P0445 - P0446 - P0447 - P0448 - P0449 - P0452 - P0455 - P0456

Read more at: http://www.obd-codes.com/p0453
Copyright © OBD-Codes.com

May 29, 2015 | 1996 Honda Civic

2 Answers

I scanned and got a code p0450 is that electrical


P0450 Hyundai - EVAP Emission System Pressure Sensor

Mar 24, 2015 | 2001 Hyundai Santa Fe

1 Answer

Diagnostic code p0701


P0453 means EVAP emission pressure sensor high input. Possible causes:
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection.
Code p0701 means Transmission control system range/performance. Possible causes:
- Open or short transmission control system circuit
- Poor transmission control system electrical connection
- Check powers and grounds to Transmission Control Module (TCM)

Aug 27, 2013 | Cars & Trucks

1 Answer

I have a code p0453 is a ford fiesta 2012 what's the probleme


P0453 FORD - EVAP Pressure Sensor/Switch High
Possible causes- Evaporative Emission System (EVAP) Pressure Sensor/Switch harness is open or shorted
- Evaporative Emission System (EVAP) Pressure Sensor/Switch circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure Sensor/Switch
- Damaged fuel tank pressure sensor

This likely is an emission system warranty problem.

Oct 15, 2012 | Cars & Trucks

1 Answer

What's trubleP0453 on 99 gmc new Sierra 1500 4.8


P0453 - Evaporative Emission Control System Pressure Sensor High Input

Possible causes- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Damaged fuel tank pressure sensor

Oct 11, 2012 | Cars & Trucks

1 Answer

How to fix a engine code p0453 on a 2000 Kia sephia


P0453 KIA - EVAP Emission System Pressure Sensor High Input

There is no one magic bullet fix.
Here are the poss issues that trigger the code and light.Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Damaged fuel tank pressure sensor (same part as above)

Sep 10, 2012 | Cars & Trucks

1 Answer

Po453 e150 econoline


P0453 - Evaporative Emission Control System Pressure Sensor High Input
Possible causes- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Damaged fuel tank pressure sensor

Sep 05, 2012 | 2007 Ford Explorer Eddie Bauer

1 Answer

Could it be that the ecu is wrong


No it is not Catalytic Converter related. Your fuel tank pressure sensor must be disconnected or the wiring to it defective for the evaporative emission system.
P0453 HONDA - Fuel Tank Pressure Sensor High Voltagexicon.jpghttp://engine-codes.com/p0453_honda.htmlForum CodePossible causes- Fuel Tank Pressure sensor harness is open or shorted
- Fuel Tank Pressure sensor circuit poor electrical connection
- Fuel Tank Pressure Sensor
- Faulty Engine Control Module (ECM) When is the code detected?A high voltage signal from the fuel tank pressure sensor is sent to Engine Control Module (ECM).
P0450 - Evaporative Emission Control System Pressure Sensor Malfunctionxicon.jpghttp://engine-codes.com/p0450.htmlForum CodePossible causes- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure Sensor
- Faulty Engine Control Module (ECM) When is the code detected?- An improper voltage signal from EVAP control system pressure sensor is sent to ECM.

Aug 10, 2012 | 1998 Honda Civic

2 Answers

P0450 code on a honda civic


Here is the definition.

The Code P0450 indicates that the Evaporative Pressure Sensor output value is not changing during the EVAP Monitor test and/or the operation of the vehicle. This code uses "two trip" logic, which means that the fault condition must be present during two successive cold starts and vehicle operation.
The sensor is mounted in the top of the gas tank near the sending unit. You would need to test the pressure sensor.

Aug 10, 2012 | 1998 Honda Civic

1 Answer

I have a 2000 Pontiac Bonneville 3.8 non supercharged. It is throwing the codes P0446, P0452, P0453. Yes it is throwing all of them and that is what is confusing me. Just reset the codes, did a...


they are all emission faults

P0453 OBD-II Trouble Code: Evaporative Emission Control Pressure Sensor High Input. P0453 code means that a reading from the engine's evaporative pressure sensor is higher than normal due to fuel tank vapor leaks into the system.

saturated carbon canister
sensor faulty
rubber evap hoses at the tank perished

idea
check the tank fuel cap seal is working
replace the cap is one possible cause

check the fuel pump pressure or for injector rail leak
P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP).

The Code P0452 indicates that the Evaporative Pressure Sensor is indicating pressure change values that are below specification, during the EVAP Monitor test and/or the operation of the vehicle.


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Apr 28, 2017 | 2000 Pontiac Bonneville

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