Toyota Tundra Gas Cap Check Engine Light

I can not find a leak and the truck runs great.

Toyota tundra gas cap check engine light.

In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. Replaced the 02 sensor on the passenger side catalytic converter twice. Replaced the spark plugs and all of this via the advise of which ever repair shop has diagnosed the problem. I had it reset several times but it always comes back on at 1 2 tank.

A check engine light can indicate a broad spectrum of problems with your 2008 toyota tundra. Toyota check engine or service engine soon light may come on due to something as simple as a loose gas cap but it can also be an indication of a number of other issues including bad spark plugs faulty oxygen sensor dirty mass airflow sensor and even an early indication of a transmission problem. The first thing you want to check is your gas cap. We replaced the ecm computer with a refurbished one.

If your gas cap is not properly attached you may see a check engine light or a loose cap warning light on the dash. What to check when it s not the gas cap. We have a 05 toyota tundra v8 2 wheel drive whos check engine light will no stay off no matter what we fix. You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed or you can use an obd ii code scanner to manually reset the system.

In this guide you will learn about common problems that trigger toyota check engine light and. I ve replaced the gas cap and always make sure it is tight. I have a 2000 tundra and the check engine light comes on as soon as the gas tank is less than half full. A loose or damaged gas cap.

A properly sealed gas cap maintains pressure in your fuel tank and prevents harmful fumes from escaping. How to reset your check engine light with no special tools duration. If the check engine light goes on in your 2016 toyota camry be sure to check your o2 sensor.