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Code po447 and po453. Likely cause? Thanks, Jim.

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Code p 0447 refers to evaporative emission (EVAP) system vent control---open circuit ===causes --wiring open circuit--EVAP canister purge valve---ECM
code p 0453 refers to EVAP pressure sensor ---high input===causes --wiring short to positive ---EVAP pressure sensor --ECM

Posted on May 15, 2017

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Posted on Jan 02, 2017

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Buick rendezvous 2002 from wheels, have 2 codes PO446 PO453


code p 0446 refers to evaporative emission (EVAP) system---vent control---circuit malfunction===causes --wiring---EVAP canister purge valve ---ECM
replace the purge valve
code p 0453 refers to EVAP pressure sensor --high input ===causes --wiring short to positive --EVAP pressure sensor ---ECM
replace the sensor

Nov 02, 2015 | 2005 Buick Rendezvous

1 Answer

What is code po453 on my 99 chevy suburb mean??with engine light on...???


code p0453 refers to evaporative emission (EVAP) pressure sensor-- high out put === causes wiring short to positive--- EVAP pressure sensor--- ECM
I would change the sensor unless you have been messing with the wires.

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1998 chevy silverado code po453


The fuel tank pressure switch is on top of the fuel pump and the fuel pump is inside the top of the gas tank.

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Will this code po447 cause my car to run bad


doubt check the gas cap will fix it, that usually throws a gross evap leak code. that code refers to the vent control circuit, specifically to the connectors at the evap canister behind the passenger wheel. it\'s pretty easy to get to, so get a nice flashlight and check the connector, my bet is that some water (as in the linked post) got in the connector or the connector itself is damaged.

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Po447


Here's a link to your code YVON.

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My KIA sportage 2006 is having this codes, PO447,PO453,PO340,PO462,PO501,PO711, how can i go about to resolve all the issues myself


Most of these errors seem to relate to the fuel system but there is another for cam timing and for transmission. I am trying to think what all these things have in common - as it seems unusual all things fail together. Start with the absolute basics first - your Battery and alternator this costs nothing all you need is your multimeter and make sure your battery terminals are clean and your alternator is not over charging - My thought is your ECU and sensors may not be getting a healthy voltage. Once you have good voltage clear all the errors and see what error alarms first. The majority of errors seem to be fuel related - make sure your car is getting good fuel and can breath - are your filters clean.

Jan 19, 2013 | 2006 Kia Sportage

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Nissan frontier 2002 failed emissions test with code P0447 something to do with service engine soon light. how do i fix this?


CODE PO447 EVAP CANISTER VENT CONTROL VALVE CIRCUIT OPEN.POSSIBLE CAUSES. 1.HARNESS OR CONNECTORS THE SOLENOID VALVE CIRCUIT IS OPEN OR SHORTED. 2. EVAP CANISTER VENT CONTROL SOLENOID VALVE.

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