HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Tossing Charcoal Canister

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Tossing Charcoal Canister

Post  xschop on Mon Aug 17, 2009 12:59 pm

I removed the Driver's fender well plastic and removed the activated carbon canister and the long cloth-braided line that runs along the upper firewall. Question is what to do with the open hard tubing that is left on the passenger's side above the A.C. ports? Just simply plug it with a rubber fuel nipple or leave open to atmosphere?
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Re: Tossing Charcoal Canister

Post  dallas on Mon Aug 17, 2009 5:41 pm

I'd plug it. Fumes might come out of it when You filler up. That usually has a vacuum on it when the computer tells it to open. The solenoid that is.I really don't know why we disconnect it. The ls engine is computer operated also. My engine(gto) had a solenoid with 1 hose and just 1 plug going to it.The porsche setup was much more complicated.

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Re: Tossing Charcoal Canister

Post  skywalker01 on Tue Aug 18, 2009 5:28 am

I was told that the fuel tank vents using that line and that you may run into fuel delivery problems if you simply plug it. I have extended my hardline to the throttle body so the fumes (if any) can be sucked into the engine for combustion.
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Cap n Trade

Post  xschop on Tue Aug 18, 2009 7:12 am

What about a PCV valve there? or a simple air filter?
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Re: Tossing Charcoal Canister

Post  Johnny Johnny on Tue Aug 18, 2009 7:23 am

Funny - I just took the charcoal filter out yesterday as well. Didn't even know it was there, but found it when I was getting rid of the cloth braided hose. Was also working on the wiring. Seems that many, if not all, of the GM harnesses are different depending on model and year. So far, none of the diagrams I've seen match mine (a 2004 GM 5.3l truck). I'm going to the library this weekend as they have the shop manuals with the full diagrams in them, and will make a copy.

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can the can

Post  xschop on Tue Aug 18, 2009 7:31 am

it gets rid of about 5 lbs on that side, 10 if you had to clean the mud-dobbers like I did since this car set in a field so long Razz
As for harnesses, I Think 2003 was the cut-off for the Truck harnesses being drive by cable. IIRC '04 went to drive by wire. Maybe Greg can enlighten the bretheren here Smile
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Re: Tossing Charcoal Canister

Post  Tetzuoe on Tue Aug 18, 2009 12:08 pm

amen to that, I think i had a wildlife preserve in each well. previous owner had no guards and must have taken this thin offroading Shocked
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Tetzuoe

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filter

Post  xschop on Tue Aug 18, 2009 1:10 pm

Guess I will just stick on a small air filter/breather there.
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charcoal filter

Post  968gene on Tue Aug 18, 2009 4:23 pm

Plugged mine on the race car...2 years of WOT, no fuel delivery issues.
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Kick the can

Post  skywalker01 on Tue Aug 18, 2009 4:43 pm

Guess it may not be an issue then. Could have saved myself the money I spent on SS braid to run back there Sad
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Re: Tossing Charcoal Canister

Post  endrnet on Wed Sep 02, 2009 7:14 pm

skywalker01 wrote:Guess it may not be an issue then. Could have saved myself the money I spent on SS braid to run back there Sad

If SS braid is the only "wasted dollars" you spend on this conversion, I'd say you got off easy.
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Re: Tossing Charcoal Canister

Post  Tetzuoe on Thu Sep 03, 2009 6:55 am

I was considering shoving the tube into a small air filter stuffed with aquarium charcoal. plugging it seems like a good plan though.. hmm

endrnet wrote:
skywalker01 wrote:Guess it may not be an issue then. Could have saved myself the money I spent on SS braid to run back there Sad

If SS braid is the only "wasted dollars" you spend on this conversion, I'd say you got off easy.

Laughing yeah... lets not talk about brake boosters I have sitting in the garage.
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Re: Tossing Charcoal Canister

Post  robstah on Tue Nov 23, 2010 4:58 pm

So, whatever came of this? I will be dropping the tank tonight and removing anything that is worth removing. Do I just cap the evap breather at the tank end or use an air filter?

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Re: Tossing Charcoal Canister

Post  Marky522 on Tue Nov 23, 2010 8:47 pm

Skywalker, if you ran that vent to the intake, it is going to constantly suck hydrocarbons from the tank and will make your car run rich, it may be able to compensate but it could cause issues.

Mark

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Re: Tossing Charcoal Canister

Post  cfgioja on Tue Nov 23, 2010 10:17 pm

what if you just unplug the solenoid and close off the t section but still leave the tank connected to the canister? what will that do? I have mine like that at the correct moment until I decide what to do.
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Re: Tossing Charcoal Canister

Post  skywalker01 on Wed Nov 24, 2010 7:56 am

Skywalker, if you ran that vent to the intake, it is going to constantly suck hydrocarbons from the tank and will make your car run rich, it may be able to compensate but it could cause issues

Interesting . . . . I have had it on the road briefly and not experienced any issues you would think would be associated with running too rich - thanks for the info though, I'll keep an eye on it. But what would be a solution? Just cap the vent lines off?? Thanks for your comment
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Re: Tossing Charcoal Canister

Post  Marky522 on Wed Nov 24, 2010 8:31 am

Not a problem, glad i could help. I personally am just going to install a check valve that will allow it to draw air in, but not leak fumes out.

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Re: Tossing Charcoal Canister

Post  skywalker01 on Wed Nov 24, 2010 8:33 am

.....and not run a line to the throttle body??
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Re: Tossing Charcoal Canister

Post  Marky522 on Wed Nov 24, 2010 8:53 am

Correct, Only reason they are run like that is to control excess hydrocarbons that build up when the vehicle sits in a hot environment. If they are allowed to exit directly to the outside that is conisdered Pollution, so they are absorbed into the charcoal canister, and purged at light throttle and the PCM sees that they are purging so it expects to see the 02 sensors go rich while it is purging the canister. I am going to install that check valve in the vent line from the tank, directly at the tank, and delete the line to the front of the vehicle completely. In theroy my gas tank could explode if my car was left in the sun with a full tank of gas, but i believe that gas caps have a pressure releif vent built into them, similar to a radiator cap.

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Re: Tossing Charcoal Canister

Post  skywalker01 on Wed Nov 24, 2010 9:10 am

Good info! I'll keep an eye on the engine to see how it runs and may try your approach as a possible
retrofit in the near future. Thanks again for the info!!
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