This engine component measures the amount of unburned oxygen in your exhaust system. If not replaced this can lead to lower fuel economy ratings damaged spark plugs a damaged catalytic converter and excess fuel burn.

Top 5 Reasons Why Your Check Engine Light Is On

The check engine light is part of the onboard diagnostics system and displays in a few different ways.

Check engine light toyota corolla 2018. The check engine light in the toyota is an important light. It can say check engine it can be a symbol of an engine it can even be a combination of both. If your check engine light is on you may have a defective o2 sensor that needs to be replaced.

Whether it s on because the gas cap is not tightened properly or you have a serious engine issue an obd ii scanner. Research compare and save listings or contact sellers directly from 58 2018 corolla models in kirkland. It s your truck s way of communicating with you.

Looking for a 2018 toyota corolla le located in 2018 toyota corolla le seattle wa. It s recommended you don t try to turn off the warning light until you ve discovered why it was on in the first place. One of the most commonly misunderstood lights or indicators in your toyota corolla is the check engine light.

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