P0447

In late feb. 2021 my check engine light came on, as well as my uvo system telling me there was something wrong with my emission's control systems. I immediately stopped & had the code read. P0447 evaporative emission system-vent control circuit open. My husband researched & found there was a wire broken, it was fixed. The check engine light went out for approximately 2 days & in early march, same thing, check engine light, stopped & check the code reading, yep same exact issue. We completed a full tune up on the vehicle, new wires, plugs, everything, fluids. Check engine light went out again & once again 2 days later yep same exact issue as well as it indicating the timing cam sensor was bad. With this new code, i made an appointment to take it to the dealership. 3/28/21 my appt date. Took the vehicle in, was told they would send a video of the inspection (which they did not)via text & they would complete the software update for the knock sensor. When they were done, they came out stating there was slug in my engine & it needed a new engine. They wanted all my oil change records & said they would try to get Kia to pay for it. They charged me 150 for the diagnosis, of which they never showed us any pictures of slug from the engine, nor did they ever really say what was wrong. Now i am doing research & find there was a recall for 2.4l engines and they want to charge me to put in a new engine, when these are the ones that have issues. By the way, they us if we drive it the engine will blow up, well i don't have a choice but to drive a vehicle i am still paying on as i do work. It hasn't blown up yet! Is it possible they thought they had a dummy in their presence and found metal shavings & just didn't tell me. Also when the check engine light came on, it didn't change the driving, other than the vehicle has used about a quart of oil a month, i have had no other issues. I just want my vehicle fixed!
ENGINE,

My van indicated a problem with a mil on the dash. After getting it tested the code indicated an issue with a vent valve P0447. I replaced the suggested part and it did not fix the problem. After researching the issue, i focused my attention on the ecm as it controls all the sensors in the vehicle. I removed the ecm and noticed rust and corrosion right away. Nissan does not consider it be a defect, however the ecm is mounted under the leaf screen where water is supposed to drain. Upon removing the cover to the ecm it was discovered that the corrosion from the water ate away at the metal and created a hole in the sealed ecm and allowed water to get and cause damage to the circuit board. My problem was only 1 sensor, but it won't pass required emission in my state. There were some reports of drivability issues by others that had the dealer tell them they need the ecm replaced and it was not covered under warranty. This is a design flaw and should be replaced by the manufacturer.
ELECTRICAL SYSTEM,