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Author Topic: Evaporation System Readiness check  (Read 7464 times)

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Offline elff

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Evaporation System Readiness check
« on: July 20, 2011, 11:15:33 PM »
Currently I have 6 completed readiness codes and 1 non completed readiness code.

The one that will not complete is
Evaporation System

Anyone know what that pertains to?

Recent changes includes a 2871 Turbo, and Solo Hi Flow Cat with a spark plug de-fouler on the O2 bung that is actually on my Magnaflow exhaust.

Car is running strong as hell and does not need to be inspected until next May, so I am really just curious as to what this means.

Thanks

Offline tazz

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Re: Evaporation System Readiness check
« Reply #1 on: July 20, 2011, 11:27:15 PM »
You could Pm Scanner.

Offline Dave@DDMworks

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Re: Evaporation System Readiness check
« Reply #2 on: July 22, 2011, 10:48:34 AM »
Take a minute and check the EVAP solenoid on the intake manifold. They are very prone to failure on the LNF engines and really easy to check. To check them all you have to do is pull the black plastic tube off of it by pushing the release. Then with the black plastic tube off, try to blow through the EVAP solenoid. You should not be able to blow ANY air through the solenoid. If you can blow even just a little air through the solenoid, it is bad and replace it.
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Offline BigSal

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Re: Evaporation System Readiness check
« Reply #3 on: July 22, 2011, 11:28:19 AM »
Daveis is correct! The Monday morning of this years mod meet Bryan and i were getting ready to leave and started the car and got a code (cant remember which any more) but Dave came over and said that it was the solenoid and to replace it when we got home.  Had issues on the way home but I stopped at the local HACK Chevy dealer and they read the code and said that the problem was the fuel pump/rail which was covered under warranty but that the solenoid was good which would cost $28.00 to replace.  I said let me replace the solenoid and pay the dollars and If it didn't fix the problem that I'd be back. He asked If I was sure and I replied, that the person who diagnosed the problem has more time on Solstice and Sky's than he has on vette's! He took offense but he had a tude anyway so F*** em. It took 2 minutes to replcae the solenoid and everything was back to normal. Cheap, Quick Fix.
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Offline elff

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Re: Evaporation System Readiness check
« Reply #4 on: July 22, 2011, 04:21:53 PM »
I will check that out tonight although I feel like I am being setup for a YouTube Video.
Here we have elff blowing his engine
 :lol:  :rofl:
 Thanks for the advice.  I will let you know how that works out.

GJ was kind enough to create a picture so I know what to look at.
Yellow Arrow

Offline Critterman

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Re: Evaporation System Readiness check
« Reply #5 on: July 22, 2011, 05:46:42 PM »
elff you  have to do what you have to do, to keep your engine happy :)
GONE: (but not forgotten) 2006 Cool named BIXABEL (BISH-AH-BEL) Mayan for "Good Roads"

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Offline elff

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Re: Evaporation System Readiness check
« Reply #6 on: July 22, 2011, 05:47:48 PM »
*sigh*
 :(

Offline Arabas

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Re: Evaporation System Readiness check
« Reply #7 on: July 22, 2011, 06:04:57 PM »
 :lol: :lol:

hope it's only a bad valve!!
keep us posted
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Offline elff

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Re: Evaporation System Readiness check
« Reply #8 on: July 22, 2011, 07:27:43 PM »
I'm not getting a full engine code, just the readiness check not finishing and the car is running great.
Engine should be cool enough now.

Time for me to go blow my engine

Offline SHiNY

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Re: Evaporation System Readiness check
« Reply #9 on: July 22, 2011, 08:04:10 PM »
Time for me to go blow my engine


Perhaps you can have Monica do it for you? Does she need any work done to her car?

Offline Sol Asylum

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Re: Evaporation System Readiness check
« Reply #10 on: July 22, 2011, 08:17:00 PM »
Perhaps you can have Monica do it for you? Does she need any work done to her car?
That's his other "engine" Shiny.
2007 Aggressive GXP

Offline elff

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Re: Evaporation System Readiness check
« Reply #11 on: July 22, 2011, 08:17:20 PM »
 :lol:
Actually we took hers for a test drive.  She has Eibach Pro-Kit springs on her car and it's making an ever so subtle clunk when it first starts moving now.
Kinda  :banghead:

I could not blow any air through the solenoid.
That's good for my car, and hopefully good for my reputation, which at this point, due to this thread, is at an all time low.
I'm terrified as to what comes[cums] next.
 :D

Offline Go-N Def

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Re: Evaporation System Readiness check
« Reply #12 on: July 22, 2011, 08:45:57 PM »
Did you stick your finger in the exhaust while blowing the solenoid?  Sometimes that helps!

Offline Sol Asylum

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Re: Evaporation System Readiness check
« Reply #13 on: July 22, 2011, 08:48:29 PM »
Did you stick your finger in the exhaust while blowing the solenoid?  Sometimes that helps!
Does Elff look like the kind of guy that can give a reach around like that?
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Offline Go-N Def

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Re: Evaporation System Readiness check
« Reply #14 on: July 22, 2011, 08:51:43 PM »
Maybe he needs to get wifey involved.  That can help too!

Offline scanner

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Re: Evaporation System Readiness check
« Reply #15 on: July 22, 2011, 10:10:14 PM »
"Readiness Codes" are also known as I/M flags. Each vehicle manufacturer's engine management system (EMS) since 1996 must use them and communicate them to scantools for the purpose of evaluating the vehicle's emission control system. The I/M flags are set to a complete or ready status when the ECM has completed it's diagnosis of the emission system.  A completed diagnosis means that all related diagnostic tests have run to completion and either passed or failed.  So a vehicle with all I/M flags set to ready may have some DTCs set or none. Both cases are considered diagnosed and ready for an I/M test by a state facility.  The vehicle with no DTCs and all I/M flags set to ready and no DTCs will fast pass,  any vehicle with a not ready I/M flag or a stored emissions DTC will fast fail.

I/M flags set to ready during normal use of the vehicle. Again they set to ready when the diagnostics are passing or failing.  So, if an I/M flag is not ready the emissions systems are not diagnosed.  The I/M flags are set to not ready on a code clear or a power loss to the ECM.  

The EVAP I/M flag can be one of the difficult ones. I think I commented on one of these before....Use the vehicle for a few days with a few several hour cold soaks between use and fuel level between 20-80% full. The EVAP diagnosis has several tests to run during normal operation and when switched off for several hours - without interruption.  Don't press the remote or open a door. So I'm suggesting you mildly drive it to work, let it sit all day and go where you need. Let it sleep when you sleep. Repeat cycle for three days and recheck I/M readiness state.   Pls let us know what happens.

Clear Skies!
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Offline elff

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Re: Evaporation System Readiness check
« Reply #16 on: July 22, 2011, 10:32:34 PM »
That pretty much describes how the car is used on a regular basis.
I drive 3.6 miles to work. The car sits for 8 hrs, then I drive home 3.6 miles and it sits until the next morning.
It's been a couple of weeks since I cleared the engine codes.
I had the bypass valve stuck code which was caused by the anti stall on my BOV.

So this is why in curious as to why it's not completing

Offline Gentleman Jack

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Re: Evaporation System Readiness check
« Reply #17 on: July 22, 2011, 10:43:44 PM »
Seriously scanner, you're a freakin' genius.

Make the right choices now

Offline scanner

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Re: Evaporation System Readiness check
« Reply #18 on: July 22, 2011, 11:25:54 PM »
Oh My!  The car is likely begging for a longer ride. Try a few "long" trips between "sleeps" something like tens miles should give the EMS a fair chance to secure the diagnostics.  Enjoy the .edu for your EMS and the ride will likely slide thru an I/M  annual exam with Fast Pass.

Clear Skies!

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Offline elff

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Re: Evaporation System Readiness check
« Reply #19 on: July 22, 2011, 11:29:47 PM »
Aaaa ok, I'll be able to do them both days this weekend and see how that works out.
Thanks

Offline Critterman

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Re: Evaporation System Readiness check
« Reply #20 on: July 23, 2011, 03:03:25 PM »
Even I know the evap complete code takes a longer drive and as scanner said not on a full or an empty tank.  Take a casual cruise this weekend.

Did you watch the practice, debrief, and quals yet?
GONE: (but not forgotten) 2006 Cool named BIXABEL (BISH-AH-BEL) Mayan for "Good Roads"

DDM
StageIII intercooled Supercharger, Wisco ceramic coated pistons, Carrillo rods, superTech valves and Springs
Ported and polished head
Exedy Stage II Clutch
big brake kit, slotted/drilled Rotors w/Porterfield pads & blue juice
Backbone, Probeam, Cross Strut Brace
Underhood, trunk, & door Lights
ZOK suspension

JPM
Center console, door inserts, & dash
Seat bolster & lumbar support

Focuztech Tri-Y Header & hi-flow cat
Solo Performance SQR-2
Norm's Rear facia
Heated Seats
Black Cat inserts

Offline elff

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Re: Evaporation System Readiness check
« Reply #21 on: July 23, 2011, 03:07:25 PM »
I did drive 8 hrs last weekend.

I have everything recorded but did not watch it yet

Offline scanner

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Re: Evaporation System Readiness check
« Reply #22 on: July 24, 2011, 09:34:37 AM »
If there is trouble the complete description is here: http://sm.gpona.com:9001/si/cellHandler.do?cellId=16270&refDoc=1969449&from=sm
Note the end of the doc. 
Clear Skies!
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Offline elff

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Re: Evaporation System Readiness check
« Reply #23 on: August 26, 2011, 09:34:19 PM »
I randomly checked my readiness codes tonight and all 7 were completed.

As stated previously

Shabby is a genius
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Offline Gentleman Jack

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Re: Evaporation System Readiness check
« Reply #24 on: August 27, 2011, 03:05:01 AM »
Shabby or scanner?
Make the right choices now

 

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