Check Engine Light due to poor fuel quality on Geo Metro

Our technicians tell us these vehicles are sensitive to fuel quality. Using fuel of marginal quality can result in illumination of the Check Engine Light with misfire or oxygen sensor fault codes stored.

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Average mileage: 143,000 (143,000–143,000)
2 model years affected: 1995, 1996
3 people reported this problem
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problem details
1996 Geo Metro 143,000 mi,
poor gas quality