Why does gas cap turn engine light on?
A loose, missing or damaged gas cap can cause the light to turn on because the vehicle’s onboard computer recognizes that it is losing pressure in the gas tank. A gas cap helps maintain proper pressure in the tank and also keeps the gas from evaporating, as well as preventing fumes from being released into the air.
How do I turn off check engine light after gas cap?
How to Reset Your Check Engine Light
- Grab your gas cap and twist it.
- Inspect your gas cap for wear and tear.
- Once you’ve tightened the cap and inspected the area, try turning on your car one more time to make sure the light hasn’t turned itself off.
What causes the Check Engine light to come on on a Toyota RAV4?
The check engine light on your Toyota RAV4 will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it’s tightened, the light will turn itself off.
Is the gas cap on a Toyota RAV4 genuine?
We offer a full selection of genuine Toyota RAV4 Gas Caps, engineered specifically to restore factory performance. Please narrow the Fuel Cap results by selecting the vehicle. Item has been added to your cart! This part contains hazardous material. This part is a packaged part and contains multiple quantities of the same item.
Where does the air leak come from on a Toyota RAV4?
I went to AutoZone yesterday and had a diagnostic check made, the code that was given was P0442 which says that it has an air leak. The guy at AutoZone told me that usually, it is from the gas cap. The cap is in tip top condition. Would you know anywhere else it can come from?
What is the DTC code on a Toyota RAV4?
If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your RAV4.