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Old 05-16-2013, 04:12 PM   #1
babaron
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need CEL code P0496 advice

So I got the CEL yesterday. OBD reader says P0496. C-5 Search reveals EVAP solenoid or vacuum issue or such. Here's the deal: I don't have the where-with-all to deal with this myself, and I don't really want the dealer muckin' around in my car. What's the worst that could happen if I just ignore it?

MODS= TVS2300 S/C, LM II exhaust and Blackhawk CAI. Car is still under warranty with GM and is running fine. Just don't want dealer touching it unless necessary.
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Old 05-16-2013, 06:20 PM   #2
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Quote:
Originally Posted by babaron View Post
So I got the CEL yesterday. OBD reader says P0496. C-5 Search reveals EVAP solenoid or vacuum issue or such. Here's the deal: I don't have the where-with-all to deal with this myself, and I don't really want the dealer muckin' around in my car. What's the worst that could happen if I just ignore it?

MODS= TVS2300 S/C, LM II exhaust and Blackhawk CAI. Car is still under warranty with GM and is running fine. Just don't want dealer touching it unless necessary.

Hello babaron,

Sorry you are experiencing an issue with your vehicle right now. I do see that you are not looking to visit a dealer right now but in the event that you decide to, I will be more than happy to locate one nearest you. I will also be sure that they are qualified and skilled to service your vehicle properly.

Reggie B.
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Old 05-16-2013, 08:57 PM   #3
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It will not pass emissions testing.
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Old 05-17-2013, 10:51 AM   #4
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That's not a problem where I live. Is there anything else?
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Old 05-19-2013, 12:33 PM   #5
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the worst is the fact that your check engine light wont tell you if you have another problem. We see this all the time in the biz, a customer says I know why the light is on its been that way for months, but then you ask how do you know if something else went bad after the first problem and you get the blank stare, fix your car!
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Old 05-21-2013, 08:38 PM   #6
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Won't another code thrown also be stored in the PCM and show up with the first code when the OBD reader is attached? Anyway, I have already made an apt to fix it next week, thanks.
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Old 05-21-2013, 09:30 PM   #7
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P0496-EVAP flow during non-purge. Replace the purge solenoid, they get carbon build up in them and stick open.

Oh yea, I work on all the Vette's at our dealership. Usually it's the vent valve solenoid that messes up, PIA to change. Purge is much easier.....lol
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Old 05-21-2013, 11:50 PM   #8
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Originally Posted by babaron View Post
Won't another code thrown also be stored in the PCM and show up with the first code when the OBD reader is attached? Anyway, I have already made an apt to fix it next week, thanks.
point was unless your going to hook a scanner to it everyday you wouldn't know,hope all goes well with the repair
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Old 05-23-2013, 12:55 PM   #9
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Thanks guys, i ll update here next week
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Old 05-28-2013, 08:17 AM   #10
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UPDATE: Went to dealer. Talked with mechanic. Purge valve was bad, as expected. BUT: I told him i have been enjoying the fact that my AFM has been nonfunctional for the last year, and asked if it would fix that. He said probably and I said " let's forget I ever showed up here, and left.

I'd much rather check the OBD reader every week for any new codes and live with the CEL on, than put up with AFM again.

There is a custom tune in my future, just don't know exactly when. Until then, I'll take this.
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