You can imagine that, over time and if left undetected, there would be less charcoal available for fuel vapor storage. This should be done with the key off. Check that the seal looks good, that is, smooth, flexible, no cracks or pitting. Take that off and replace it. The vent solenoid will be attached to that with a red two-wire connector that attaches to it.
Replacing a catalyst with a straight pipe is one traditional example of P0446. Let me know how yours turns out. Perform a diagnostic test to find out what's wrong, then you can repair the problem and usually… Ok one more possibility the electronic fuel sensor on the driver side of the carburetor. This test monitors the number of high resolution pulses which have been missed not detected. Here are some of the most common. If you are getting that message, plus a P0446, it may save you a ton of time and money to replace the fuel cap and see if it goes away. The smoke test will show any leaks that may not have been visible before as the leaks are generally much smaller than the human eye can see.
The antilock system can go out while the service brakes work fine. One key tip overlooked by the first shop was that the customer complained about refueling issues—an excellent clue for an experienced technician. It uses fuel level information to calculate the time it should take for the electric air pump to achieve target amperage value. It says something related to the Evap Emission control system. The light is likely to have come on because of a defective wheel speed sensor or a… It really doesn't matter.
A similar emissions-related comparison holds true for a catalytic converter. Attempt to draw a vacuum on the valve. For him, understanding the system and using the right tools paid off. This is where it pays to understand how specific evap systems operate. P0446 Diagnosis- Nissan Versa A mechanic has a wide range of instruments at his disposal to diagnose what would be causing the P0446 in your Nissan Versa.
Albert- Have you scanned for codes again? Finally, take the time to fully understand how all the associated components interact with one another. Nissan Quest Engine Specifications: Engine Type : Multi-Cylinder Engine Cylinder Type : W-Type Engine Engine Air Intake Process : Naturally Aspirated Your Nissan Quest engine control system detects a problem, the computer stores the diagnostic trouble code P0446 in its memory. Clean or replace as necessary. Take some time to check a few vehicles and perfect your use of the technique described here. He was able to validate the condition without having to remove the charcoal canister.
Idles rough initially but smooths out. P0446 Description The Evaporative System canister vent control valve is located on the canister and is used to seal the canister vent. I have a 96 240, you? Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. In this case, though, the charcoal canister was restricted due to contamination. What has changed is the U.
Most valve solenoid should measure between 30 Ω and 40 Ω, though some newer electronically-controlled valves may range between 2 Ω and 6 Ω. Air should not escape from the purge valve. One major issue with charcoal canisters is not being able to see inside the canister. The information contained on this site is presented for informational purposes only. Let me know how yours turns out. There are a few clips that you need to find and remove.
It is often accompanied by P0442. Repeat this test on the purge control valve. There are approximately 64 high resolution pulses for every cam pulse. Use a 12 V jumper to open the valve. Indicates that there is a fault in the evaporative emission control system.