can i drive car(2001subaru legacy wagon)a long trip (2400 miles) with check engine light (p1443)?Drove allready 350mi after reseting light when scanning for cod
Hello I will help you with your question,
The P1443 indicates a problem in the evaporative emissions system and should not affect the vehicle operation. Often it is caused by the canister vent valve being clogged or the canister failing and blocking the fuel tank vent path.
The only problem driving with this code set is that you are not warned of another code setting as the light is already on. If the light starts flashing you need to stop the engine though as that is a warning the catalytic converter could be damaged.
By itself you can drive the car on an extended trip with a P1443 set.
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Where is it locate ?
The vent valve (drain valve) and canister are under the vehicle back by the fuel tank, There is also a one way valve on the tank itself that may be stuck.
Click here for vent
Click here for canister
There is a shut valve on the neck of the fuel filler that can stick closed or wasps like to plug it with mud
Click here for location
If the filler tube is rusted through that could be the source of the code as well. Testing the system is done with a smoke machine to check it for leaks.
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The car is in Boulder Co. I'm in Syracuse N.Y. I'll be in Boulder next Tuesday. I'm looking to send car to repair shop .Haw much time they need to fix the problem (roughly)?
You will need the shop to diagnose the problem before you can repair it. All you know at this time is you have a code saying the vent valve will not close. This could be the valve, the canister, a cracked hose or the vent on top of the fuel tank.
You should expect a good shop to spend 1 hour to find the problem the getting parts to repair may be an issue. The canister and drain valve should be available but you could have a rusted filler tube which may need to be ordered.
As I posted above this code alone would not stop me from driving the vehicle it should not affect performance. Either Colorado or upstate New York is a great place to have this diagnosed as they both see many of these vehicles and the New York location sees them rusty.
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