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98 chevy k1500 w/4.3... p0141 code and bad gas mileage
I have a 1998 chevy k1500 with the 4.3L engine. when i brought the code up it said bank 1 sensor 3. Possible bad o2 sensor or fuel pressure. I have not replaced the o2 sensor yet hoping someone has had the same problem and knows exactly what the problem is. thanks!
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