Скачать с ютуб Fuel pressure sensor installation P0446 Evap code GMC Canyon video в хорошем качестве

Fuel pressure sensor installation P0446 Evap code GMC Canyon video

How to remove/install a fuel pressure sensor on GMC Canyon, extended cab, 2005. Installing this new fuel tank pressure sensor did fix the P0446 code, and the check engine light never came back. I made sure my fuel level in the gas tank never dropped below 1/4 of a tank level during this 4 day drive cycle. After this drive cycle, the truck turned off the check engine light. Make sure to clean off the top of the fuel tank area thoroughly, by brushing it with a medium bristle scrub brush, then use your flexible vacuum hose to get into the area, and vacuum out the road rocks, and sand, and rust, and debris, sitting on top of the fuel tank. Then afterwards, you can start to undo the electrical connection to the fuel pressure sensor, and pull out the sensor. There might be so much sand and dirt sitting above the fuel pressure sensor and the electrical connection, that you may not even be able to see it, initially. Be careful not to push and scrape too hard while cleaning off the debris. The 3 causes of a P0446 code, are: (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement. (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister. (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced. For me personally, I actually had 2 problems at the same time! I had just purchased the truck from the previous owner for a cheap price. Initially, the truck would not allow me to put gasoline into the fuel neck, at the gas station, without the gasoline backing up the fuel neck until it spilled out of the truck, and onto the ground. A faulty fuel pressure sensor would never cause this to happen. What caused this to happen was that the charcoal canister was plugged up with too much dust, from driving off-road in dusty conditions. Because the canister was not allowing enough airflow to pass through the canister, it would not allow the air to exit quickly enough from the canister and through the vent valve, to the outside of the truck, in order to allow the gasoline coming into the gas tank, to push the air inside of the gas tank, out of the gas tank, at the same rate of speed at which the gasoline was coming into the fuel neck. If the gasoline is put into the fuel neck when you are filling up, and you have to put in a small amount of gas at a time, then wait, wait for it to drain slowly down the fuel filler neck and into the gas tank, then you can put in another small amount of gas into the fuel neck, and wait again for it to drain down into the gas tank, then you will know that the fuel system has a flow restriction (clog). The clog is usually not on the line between the fuel filler neck and the gas tank, it is usually on the line that is between the gas tank and the gasoline vapor cleaning tool (charcoal canister). The air that is displaced out of the gas tank, by the entry of the new fuel into the tank, is pushed along the line out of the tank to where it enters into the charcoal canister, where most of the gas vapors are filtered out of the air, before it exits the vehicle through the vent valve, and to the environment. For me, my vent valve solenoid was functioning correctly, but my charcoal canister had an air movement restriction, due to too much dust, and it was causing the gasoline I was trying to fill at the gas station, to spill down the side of my truck and onto the ground. Luckily I was able to remove the canister and spray it out, and re-install it, and successfully fill fuel up at the gas station. However, my P0446 code did not go away. I had another problem, apparently. I replaced my fuel pressure sensor, on top of the gas tank, and after driving 4 days with not allowing the fuel level in the gas tank to drop below 1/4 tank during these 4 days, the truck computer removed the P0446 code, and so the check engine light was removed from the dash board! Halelujah. I would also recommend watching the other videos on my channel showing the vent valve solenoid on a charcoal canister, for the Evaporative emissions system on GMC Canyon. Subscribing would be the easiest way to see all the videos, if you want. This is a fantastic video on the evap system and the gas cap as well, linked below:    • Check Gas Cap Light Fix