Codes Po0420, po0455, and po0441, cars stalls at red lights?

Hi,

Two of the codes are related to an evaporative emissions system large leak. Have you ever noticed a fuel smell? Also, I suspect the P0441 and P0455 are causing the P0420.

A large leak in the EVAP system is usually not difficult to find. Check to make sure the fuel cap is tight first. If it is, remove it and check where it mounts for corrosion that may cause a leak.

If that is in good condition, inspect the filler tube for any rust issues and the charcoal canister located under the vehicle in front of the fuel tank. Check the hoses to it making sure they are connected and not damaged. (See pic 1)

Let me know what you find or if you have questions.

Take care,

joe

See pics below.

Thanks, I will have these checked and definitely let you know. Thanks again.

Update: I can’t get it into the shop until the middle of the upcoming week.
But now every time it stalls the Tachometer doesn’t work when I crank the car (only after stalling) and then the A/C won’t blow cold when the Tach is not working. So, I have to pull over. Turn the car off and crank it up again and the Tach and A/C will work until the next stall.
This is so frustrating.

Hi,

The idea that the tach stops working sounds like a faulty crankshaft position sensor. Do me a favor. Take a look through this link and let me know if anything seems to mirror what you experience:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

If you feel it does, I suggest replacing the sensor to see if that stops the stalling. I attached the directions below for replacing it on your vehicle.

Let me know your thoughts.

Take care,

Joe

See pics below.

Thanks so much.
Yes, that describes what’s going on with my car. I will update after it’s replaced. Much appreciated.

Hi,

You are very welcome. I hope that resolves the problems.

Take care and let me know.

Joe