Could this be caused by disabled charcoal canister?
#1
Could this be caused by disabled charcoal canister?
I have a tuned PCM from MadZ28.com and I have already removed EGR, AIR, and cats, and I think I may have picked to de-activate the EVAP charcoal system as well. My question is this, how bad does it affect gas mileage and can it cause a miss or slight hesitation at high RPM's? It has been a few months since the install of the PCM, and it seems like recently my mileage is starting to get around 200 miles per tank. I also have developed a slight miss up top. I am thinking that it is probably an opti problem since it has about 80-90k on it and is about 4 years old.
Basically I just want to know if I need to re-activate the EVAP charcoal system and replace it or if I should not worry about it and just replace the opti, because it probably needs it anyway?
Basically I just want to know if I need to re-activate the EVAP charcoal system and replace it or if I should not worry about it and just replace the opti, because it probably needs it anyway?
#2
Re: Could this be caused by disabled charcoal canister?
I doubt it's your EVAP system; this system is used to absorb fuel fumes when the engine is shut off so they don't polute, then reburns them when the engine is running...minimal fuel involved here.
I would look at your spark plugs and spark plug wires as the source of your miss. The opti is possible but always start with the simple things first.
I would look at your spark plugs and spark plug wires as the source of your miss. The opti is possible but always start with the simple things first.
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