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2001 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality
Posted to Chrysler Driveability on 8/30/2019 8 Replies

Hi Everyone, I just am trying to make sure I'm not missing something here. Fuel pressure spec is 44.2-54.2 but my pressure was 65lbs. I replaced the fuel filter (pressure regulator) and pressure dropped to 60 still too high. I next ran return line to bucke...

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  Related Documents & Media  2001 Jeep Grand Cherokee Laredo

 
Message Closed w/FIX

car Vehicle Data

2001 Jeep Grand Cherokee Laredo

VIN 1J4GW48SX1
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Fuel Pressure

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2001 Jeep Grand Cherokee Laredo

VIN 1J4GW48SX1
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Fuel Pressure

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)