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2018 Jeep Grand Cherokee Limited 3.6L MIL Lamp on
Posted to Chrysler Driveability on 7/24/2025 12 Replies

Vehicle brought to us running rough and code p0171 and p0300 check for vacuum leaks none found,inspect plugs found worn out so replaced also installed 3 coils for b1 ,after getting to close loop lft went +23% only b1 runs kinda rough but no misfires ,off i...

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car Vehicle Data

2018 Jeep Grand Cherokee Limited

VIN 1C4RJFBG2J
Engine3.6 L / 6 cyl / FLEX
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
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car Vehicle Data

2018 Jeep Grand Cherokee Limited

VIN 1C4RJFBG2J
Engine3.6 L / 6 cyl / FLEX
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)