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How to fix P0453 code on 2002 Cavalier - Express Chevrolet Cars & Trucks

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Replaced bad fuel pump started it up works good but now I'm getting PO543 code


Code P0453 refers to "Evaporative Emissions Control System Pressure Sensor High Input", see link for full details. Hope this helps. http://www.obd-codes.com/p0453

Feb 09, 2016 | Cars & Trucks

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Code p0453 on 2002 chevy silverado


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.

Apr 18, 2014 | 2002 Chevrolet Silverado 1500

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FORD RANGER P0452 & P0453 DIAGNOSTIC CODES


Go here to look up these codes and the possible solutions to repairing them.

Feb 12, 2013 | Ford 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

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I have a 2003 Kia sorento 3.5 liter engine 2 wheel drive. Check engine light on reading code P0453 Evaporative Emission system pressure sensor / switch high input. Any idea what is the cause of this...


possible causes--- p0453-- - Rubber hose to EVAP control system pressure is clogged, vent, kinked, disconnected or improper connection.
- EVAP control system pressure sensor may be faulty
- EVAP posible solutions, - Retight gas cap - Replaced EVAP Control System Pressure Sensor. have a good day !!

May 19, 2011 | 2003 Kia Sorento

1 Answer

2002 chevy cavalier has check engine light on. Got it checked and said vapour lock. How do you fix that? Also, how do you fix a barring? Is it just better to take it on to get fixed


Vapour lock could be a bad gas cap..

reset the code and get a new gas cap,,

I never changed a barring on this car. but get the book for the car $20 at autozone for help with this..

Mar 12, 2010 | 2002 Chevrolet Cavalier Coupe

2 Answers

P0453


Evap pressure sensor malfunction- Open short vapor pressure sensor circuit or ECM

Aug 02, 2009 | 1996 Toyota Avalon

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