Question about 1991 Buick LeSabre
You could have a sensor going bad, or an o2 sensor picking up irregular signals. try to reset your cars computer by disconnecting the positive cable from battery for 5mins. this will reset the whole system. if the light comes back on thrn i suggest you take it to autozone or an advance auto to have it code read for free. they will code read it and tell you where the problem is and you can go from there. hope this helps and thank you for choosing fixya.com
Posted on Nov 12, 2010
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Posted on Jan 02, 2017
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