Issues with Codes P0440,1,6
#16
Lexus Champion
iTrader: (3)
it sounds like you need the VSV valve that is bolted on the charcoal canister, some people had luck replacing the VSV while the canister is still on the car"its very difficult though" Either way you would need a lift and not sure on the LS but on the gs you have to remove pass side axle shaft in order to remove the canister.
#17
OK I know the last post to this thread was over a year ago but I don't like to keep starting new threads about the same issue. I have the same three codes but in my case I get a strong smell of exhaust (NOT GAS) under a hard acceleration so I would guess its a leak, not a valve sensor malfunction.
I checked the hose where the smoke test port is and they are all pretty loose but none appeared to be cracked and none weren't disconnected. From what I have researched on the web it seems the P0441 and P04446 code get tripped because of the P0440 code means a significant leak so the other codes are triggered because the system cant regulate flow and sets them off. I also read that the P0440 code is likely a leak from either the inlet or purge line. I know these codes have nothing to do with the cats, o2 sensors etc.
Since I have a strong exhaust smell under hard acceleration I would almost have to think its coming from one of the hoses under the hood. The other possible place would be from the tank to the canister but i don't i would get such a strong exhaust smell if it where coming from all the way in the back of the car.
Has anyone had these codes as well as the strong smell of exhaust under hard acceleration and if so what did you determine was the culprit? Maybe the codes and smell are two separate issues but it dint start happening until the engine light/codes were triggered.
Any help would be greatly appreciated.
I checked the hose where the smoke test port is and they are all pretty loose but none appeared to be cracked and none weren't disconnected. From what I have researched on the web it seems the P0441 and P04446 code get tripped because of the P0440 code means a significant leak so the other codes are triggered because the system cant regulate flow and sets them off. I also read that the P0440 code is likely a leak from either the inlet or purge line. I know these codes have nothing to do with the cats, o2 sensors etc.
Since I have a strong exhaust smell under hard acceleration I would almost have to think its coming from one of the hoses under the hood. The other possible place would be from the tank to the canister but i don't i would get such a strong exhaust smell if it where coming from all the way in the back of the car.
Has anyone had these codes as well as the strong smell of exhaust under hard acceleration and if so what did you determine was the culprit? Maybe the codes and smell are two separate issues but it dint start happening until the engine light/codes were triggered.
Any help would be greatly appreciated.
#18
Lexus Test Driver
iTrader: (1)
OK I know the last post to this thread was over a year ago but I don't like to keep starting new threads about the same issue. I have the same three codes but in my case I get a strong smell of exhaust (NOT GAS) under a hard acceleration so I would guess its a leak, not a valve sensor malfunction.
I checked the hose where the smoke test port is and they are all pretty loose but none appeared to be cracked and none weren't disconnected. From what I have researched on the web it seems the P0441 and P04446 code get tripped because of the P0440 code means a significant leak so the other codes are triggered because the system cant regulate flow and sets them off. I also read that the P0440 code is likely a leak from either the inlet or purge line. I know these codes have nothing to do with the cats, o2 sensors etc.
Since I have a strong exhaust smell under hard acceleration I would almost have to think its coming from one of the hoses under the hood. The other possible place would be from the tank to the canister but i don't i would get such a strong exhaust smell if it where coming from all the way in the back of the car.
Has anyone had these codes as well as the strong smell of exhaust under hard acceleration and if so what did you determine was the culprit? Maybe the codes and smell are two separate issues but it dint start happening until the engine light/codes were triggered.
Any help would be greatly appreciated.
I checked the hose where the smoke test port is and they are all pretty loose but none appeared to be cracked and none weren't disconnected. From what I have researched on the web it seems the P0441 and P04446 code get tripped because of the P0440 code means a significant leak so the other codes are triggered because the system cant regulate flow and sets them off. I also read that the P0440 code is likely a leak from either the inlet or purge line. I know these codes have nothing to do with the cats, o2 sensors etc.
Since I have a strong exhaust smell under hard acceleration I would almost have to think its coming from one of the hoses under the hood. The other possible place would be from the tank to the canister but i don't i would get such a strong exhaust smell if it where coming from all the way in the back of the car.
Has anyone had these codes as well as the strong smell of exhaust under hard acceleration and if so what did you determine was the culprit? Maybe the codes and smell are two separate issues but it dint start happening until the engine light/codes were triggered.
Any help would be greatly appreciated.
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