DTC P0947 EVAP system low purge flow - Honda Civic Forum


Fuel, Oil, Cleaners & Other Maintenance Extending the life of your Civic requires the proper fuel, oil, and cleaners, along with other regularly scheduled maintenance.

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Old 05-08-2011   #1  
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DTC P0947 EVAP system low purge flow

Uhh.....WTF?

So, Autozone shows an EVAP valve.... nobody really shows the evap canister, and by the way, is the canister that little filter thingy by the gas tank that Gearbox cut open in his "forgotten tune up" thread?

I changed the gas cap, since I looked and it WAS bad; EVAP code still came back.

Any suggestions?
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Old 05-08-2011   #2  
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Re: DTC P0947 EVAP system low purge flow

no, that is the air filter. the charcoal canister is a different part to trap fuel vapors. low purge is usually related to a faulty evap valve (not opening to send gas vapors to the engine) located near the throttle body.
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Old 05-08-2011   #3  
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Re: DTC P0947 EVAP system low purge flow

Is that the 50 something dollar part that AZ is showing me here?

http://www.autozone.com/autozone/par...79057_0_0_1095
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Old 05-08-2011   #4  
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Re: DTC P0947 EVAP system low purge flow

yup.
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Old 05-09-2011   #5  
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Re: DTC P0947 EVAP system low purge flow

Could I possibly clean this thing with some carb cleaner and have a chance of it working again?
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Old 05-09-2011   #6  
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Re: DTC P0947 EVAP system low purge flow

carb cleaner will ruin plastics. you could try electric parts cleaner or MAF sensor cleaner.
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Old 05-09-2011   #7  
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Re: DTC P0947 EVAP system low purge flow

A friend may have a can of MAF cleaner...
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Old 05-17-2011   #8  
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Re: DTC P0947 EVAP system low purge flow

Passed emissions yesterday!!!!!!

It only took a downstream O2 sensor, a set of (the right) plugs, and a purge valve.
Not a new cat, like some of the mechanics told me.
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Old 05-17-2011   #9  
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Re: DTC P0947 EVAP system low purge flow

sweet. did you need a new purge valve or was the old one fine after cleaning...
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Old 05-17-2011   #10  
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Re: DTC P0947 EVAP system low purge flow

I just bought a new one. it was like $35 at the dealer, I figure if it's that cheap why screw around?

Oh, I took some pics too, just gotta get off my lazy *** and post them...
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Re: DTC P0947 EVAP system low purge flow

HELLO I HAVE A 2006 HONDA CIVIC AND IM TRYING TO FIGURE OUT WHERE DOES THE EVAP PURGE VALVE SOLENOID LOCATES AT, I LOOKED ALL OVER THE CAR CAN U HELP ME OUT, PLEASE i need to replace the part help me
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Old 11-30-2011   #12  
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Re: DTC P0947 EVAP system low purge flow

If the 06 car is the same body as the 04, then this part is attached to the throttle body, you'll have to remove the complete air cleaner. If I remember right, it was a pretty straight forward part swap.
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