
2001 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality
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...
FIX posted 9/18/2019
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Message Closed w/FIX
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VIN | 1J4GW48SX1 |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |
Misc. | Fuel Pressure |
Trouble Codes
P0172 | Fuel System Too Rich (Bank 1) |
P0175 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2001 Jeep Grand Cherokee Laredo
VIN | 1J4GW48SX1 |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |
Misc. | Fuel Pressure |
Trouble Codes
P0172 | Fuel System Too Rich (Bank 1) |
P0175 | Fuel System Too Lean (Bank 2) |