Just a tiny bit of a back story to understand why I am asking about this.
When I bought my 79 cherokee, it had caught on fire under the hood. The trans was pukeing atf out the fill tube onto the exhaust and then caught fire. It burnt the whole right side of the engine and compartment. Thats why I got it so cheap. It burnt all the wiring, heater hoses, heater box, ac hoses, spark plug wires, air cleaner, carb, battery, and charcoal canister before they got it out.
I replaced all damaged parts (includeing the trans, witch I swapped in a 4 speed) except for the ac lines and the charcoal canister. The ac unit inside the jeep was all messed up anyways, so I simply removed everything except the pump (kept it for OBA) The charcoal canister I never replaced because back then, I didnt even really know what it did. I just knew it was for emissions, and figured I didnt need it.
Fast forward to now and I have been meaning to put one back in for a while now, but its just never been high on my list. But while checking the oil after driving it last weekend I kept smelling gas. I was checking all my fuel lines and hoses and all were good, no leaks. Then I remembered the fuel tank vent hose, yep, theres the gas smell. SO I figure I need to take care of this, not so much for the smell and emmissions, but for saftey, as it just venting fumes into the engine compartment! How or why, did I not notice this untill now!
The canister on my wrangler simply has a little vaccume valve, and when it gets vac (when engine runs) it opens and vapor is vented into the air intake tube before it goes into the TB. So I started to look for one of these, untill I remembered all the parameters for CCP in my bin files on my fuel injection.
SO, I was thinking would there be any reason not to just get a compatable canister/valve and just hook it up and run it and let the ecm controll it? And if so, would there be any reasons to alter the ccp settings in the bin from stock? I'm thinking no?
And last, I was thinking about heading down to the pull a part this weekend, so what vehicles could I look for to get a compatable canister other than (I assume) the tbi trucks? And where would it be located on them? I have never paid attention to the canister on them while pulling parts, so I have no clue.
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