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The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

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Q: What are some of the reasons a check engine light comes on on a 1997 Toyota Tercel?
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Check engine light on Toyota tercel?

The check engine light on a Toyota Tercel can come on for a variety of reasons. It can be come on whenever there is a problem with the engine that needs attention. To reset it, disconnect the battery for a few minutes then re-connect it.


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I replaced the battery on my 1997 Toyota Tercel but when I try to start the engine it still clicks and takes 10 - 15 tries to start?

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Why is the check engine light on in a Toyota Tercel?

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions. If the check engine light is flashing a misfire has been detected


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It is probably your EGR valve causing the check engine light. I recently bought a used 1997 Toyota Celica and had this exact problem. The new valve cost approximately $85 and fixed the problem right away.


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If the check engine light was on on a 1996 Toyota Tercel and the problem was fixed what would be the problem?

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