Question about 2000 Jeep Grand Cherokee
P0171 Fuel trim bank one condition Lean (If bank one and two codes set together suspect fuel pressure or MAF sensor. Or O2 sensor defective
P0174Fuel trim bank two condition Lean (same as above or Failed H02S21 Heated O2 sensor Bank 2 sensor 1)
Posted on May 11, 2014
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Posted on Jan 02, 2017
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