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Jeep
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2017
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Wrangler Unlimited Sahara, Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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3.6L - DTCS P0155 To P0455
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Diagnosis And Testing
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P0171-Fuel System 1/1 Lean
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Set Condition
Set Condition
The Powertrain Control Module (PCM) multiplies the short term adaptive value and the long term adaptive value together. If the total corrective value is above a calibrated threshold for more than 30 seconds, a fault is set.