Check Engine Light due to poor fuel quality on Geo Metro

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 143,000 (143,000–143,000)
2 model years affected: 1995, 1996
3 people reported this problem
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poor gas quality