Awasome 2001 Toyota Tundra Reset Check Engine Light 2023. Is it ok to drive with a check engine light on? Web my check engine light went on recently, and sometimes it flashes on and off (1 second interval) theng goes solid, i read online usually its the catalyic converter or o2 senson but i want to verify.

This is a bit more effort so the simple key method is much preferred. Not an immediate problem as the engine light code was reset, and check engine light has not returned. Remove the negative terminal from the automobile battery first.

