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LinkBack | Thread Tools | Display Modes |
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#1
06-14-2006, 03:29 PM
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I also am getting the P0455 code, so I need to check the gas cap and the Charcoal canister shut-off valve. But where do I look for the regeneration valve/Purge Control Valve on a 2000 C230K? How is this checked?
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Bruce 2000 C230K 1970 280SL 
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#2
06-15-2006, 10:26 PM
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My low fuel light flashers after I have taken my ten mile trip to work. And now my CEL is on with the P0455 code. I ordered a new fuel cap from Phill today. He suggested the regeneration valve; $63.00 would be next to check. He said he has sold some of these over the years. As for the Charcoal canister shut-off valve; $150.00 he has not sold any of these for the C230. So where is the regeneration valve and how do you check it?
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Bruce 2000 C230K 1970 280SL
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#3
06-15-2006, 11:57 PM
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 Quote:
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#4
06-16-2006, 08:47 AM
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Purge control valve (under hood as in the pic) make a "tick-tick" noise when it's working properly. Warm the car, stop, pop the hood and listen for the noise and feel the valve as well as it can be felt working. I replaced my own this spring to clear the code, worked like a charm. My mechanic said that the shut-off valve is RARELY at fault.
As for diagnosis, he was able to use the SDS to determine which compenent was faulty. I presume there is some sort of emissions adaptation values or other way, but I didn't get specific with him.
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John Shellenberg 1998 C230 "Black Betty" 240K http://img31.exs.cx/img31/4050/tophat6.gif
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#5
06-24-2006, 03:33 PM
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OK, somebody stole my shutoff valve! All the drawings say it should be there, but it's not. Maybe a there was model change? If I do have one, it must be somewhere else (see pictures). From all the comments, it sounds like I should try the other valve, so I'll let you know how it worked out. Thanks everyone for all the help.
Don
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2008 ML350 2007 Honda Element 2007 Honda Accord 2009 Honda Civic Last edited by DonB; 06-24-2006 at 03:41 PM.
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#6
06-24-2006, 03:48 PM
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Starfinder is wrong on this one- the shutoff valve (and canister) is on the LR side- behind the fender liner. I've never seen one by the fuel pumps.
To help everyone- if the regeneration/purge valve is clicking after running a few minutes- pull the canister side hose off- the valve should be applying vacuum to the canister- if it is, it's probably OK. The shutoff valves are very common- easiest way to check is to plug it off and see if the system holds vacuum then- thats what the car does when it runs the test- actually you could get the car to run the test for you- must have between 1/4 and 3/4 a tank of fuel and let the car run an OBD2 drive cycle- if the code doesn't come back, the leak is gone.
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#7
06-24-2006, 11:29 PM
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OK, I've replaced the purge control valve and cleared the code. If the CEL is going to turn on, it will be a couple of days.
MBtech21 - Thanks, I was starting to think I was nuts! But to clairify, were is the "LR side"? Does that mean Left-Rear side? Is that the driver or passenger side? I assume it's on the rear. Thanks, Don
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2008 ML350 2007 Honda Element 2007 Honda Accord 2009 Honda Civic
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