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OBD - Evaporative System: Not Ready

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Old Apr 24, 2013 | 02:24 PM
  #1  
chono's Avatar
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From: San Francisco, CA
OBD - Evaporative System: Not Ready

California Smog - I need all systems marked ready (or non-applicable) in OBD.
Everything is fine - except for evap.

Does anyone know what I need to do to trigger the test so I can get smogged?

I rarely drive the car on the street. And I never run close to a full tank - and am rarely over 1/4 tank. Smog dude said to fill the tank and start the car cold. That alone didn't do the trick.

Thanks!

-'chono'
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Old Apr 24, 2013 | 02:39 PM
  #2  
SilverShadow03's Avatar
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From: NorCal
Mods list? Have you had this problem before? Are you throwing any codes? More info would be appreciated.
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Old Apr 24, 2013 | 02:44 PM
  #3  
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From: Centreville, VA
Have you cleared any cel's latetly? I now I cleared mine before heading to get smogged, and the tech said it was "not ready" and I needed to drive it for a bit (about 30-40 miles) to get it to read.
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Old Apr 24, 2013 | 03:00 PM
  #4  
chono's Avatar
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From: San Francisco, CA
Sorry about the lack of details.
No engine mods.
I was running a different cat - but am back to OEM now. The cat was causing codes to be thrown -- but just 0420.
No other codes being thrown.
I had cleared recently -- which resulted in many 'Not Ready' systems. I drove a little under 100 miles. Now all systems are ready except for evap.

My understanding is that there is a specific condition that causes the Evap System Test to occur.

Thanks again for the help.

-'chono'
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Old Apr 24, 2013 | 03:47 PM
  #5  
chono's Avatar
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From: San Francisco, CA
And ..
I think I know what to do now.
FSM 13A-23 says to use patterns: 5, 6, and 23

My driving habits make pattern 5 difficult to achieve.
I get it.
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