How To Test and Replace an EVAP Canister Purge Valve P1456 P1457

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How to test and replace an EVAP Canister Purge Valve. This is something you may be looking at if you have an EVAP trouble code, such as P1456 or P1457 EVAP Control System Leakage.




What does the EVAP (Evaporative Emission) system do and what is an EVAP Canister Purge Valve - The EVAP controls minimize the amount of fuel vapor escaping to the atmosphere. Vapor from the fuel tank is temporarily stored in the EVAP canister until it can be purged (expelled) in to the engine and burned.

The EVAP canister is purged by drawing fresh air through it. The purging vacuum is controlled by the EVAP canister purge valve, which is open whenever the engine coolant temperature is above 149 degrees F.

Note:
Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. Carsntoys is a member of the Amazon Influencer Program.

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I have a P1457 on my 2003 S2000. Your videos will come in handy. Thanks

Theanhdy
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Always well organized. Always well presented.

o.c.stiggs
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I enjoy your videos and how the great job you do in your explanations. What is your automotive background? Do you have any formal training?

Allen-bmtz
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hey there carsntoys, i was wondering if that valve could be part of the reason when i get low on fuel that i get a check gas cap warning until i refuel ? it does it everytime i get nelow a quarter tank of fuel on a 2005 honda accord EXL 6 cylinder, thanks for your time, you have great info always.

skismosis
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You know where can I get one vapor canister purge solenoid from ? For 05 S2k

MVSky.
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Looks similar to the one on my 06 subie sti

pirihern
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I have a 2013 altima with a po452 code. Can you assist witht that please

DwayneCane-ievs
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Step 2 in the s2k service manual: Connect CM connector terminal Af to hod
ground with a iumper wire
ECM CONNECTOR A (32P
PCS (RED/YEL)
725 26 27
T28 29 30 /
JUMPER WIRE
Wire side of female terminals. Is this necessary to check the valve?

Theanhdy
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and p.s. it does it even though i have replaced the gas cap . so actually the old cap did not have a problem.

skismosis
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Is the valve always closed by default? Meaning can I blow through it?

mikesuarez
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How to remove it from a 02 Subaru Impreza ts because my engine code is p1443 evap vent sylinode fault plz I’m having troubles with my car

kennylee.lil.ab
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