P0440 code solution? PLEASE HELP
2001 Kia Sportage, 5 speed, 4wd
Hi, I have seen various threads here on the p0440 and that is what my reader tells me.
1. The check engine light is on.
2. When I accelerate, the car hesitates from 1000-2500 rpm then smooths out after 2500rpm and idle is perfect.
I already removed the purge solenoid valve and tested it. Without voltage, nothing moves through. With 12v applied, I can blow through it from bottom to top just fine so the PSV is just fine.
I removed the carbon canister and blew through each of the two tubes and air moves through each way just fine without obstructions. The canister is not much bigger than a coffee mug and is super light. The pic of the canister on the kiatech manual shows 3 outlet/inlets on it, mine has ONLY 2. The number on the canister is K32A.
I cannot find the CCV (canister close valve)...from the fuel tank, I see a line going to the engine compartment and that goes to one of the two connectors to my canister. The outlet of the canister (other 1 of 2 connectors) goes to the bottom of the PSV and the PSV output on top goes to the top of the valve cover...I blew into this tube and there is no obstruction blowing from that tube into the valve cover. There are absolutely no electrical connections to the canister and there are no other valves or anything coming to or leaving the canister. I'm not talking about what is at the gas tank...just what is right there by the canister. Where is this mysterious CCV or do some models not have it? If not, then the kiatech manual is missing a LOT of info.
My gas cap tightens just fine and I click it way more than enough times as indicated by the sticker inside the gas cap..I will click it at least a dozen times. The o-ring is there and it looks just fine. With the engine running, should I be able to open the cap and find air rushes in or do I have to use up a significant amount of gas to produce a vacuum in the tank?
All the lines connecting to the fuel line, PSV, canister, etc... all seem fine and I can hear to hissing or anything. They are pretty rubbery and not hard and cracked at all.
The only thing that has changed on this car recently is that I had to replace the thermostat by the radiator and I installed manual wheel locks by the WARN company since they're superior to the vacuum ones...is is possible the vacuum part of the 4wd wheel lock engagement system is interfering with my acceleration?
Any help would be very much appreciated!
Last edited by acm; 04-05-2008 at 06:32 PM.