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P0172/P0175/P0496 - 2008 Chevrolet Suburban LTZ 5.3L V8 with Flex Fuel: EVAP System and Lean/Bank Issues
2008 Chevrolet Suburban LTZ 5.3L V8 (Flex-Fuel) - I recently experienced check engine light activation with diagnostic codes P0172 (System Too Lean Bank 1), P0175 (System Too Ri...
2008 LTZ Chevy Suburban 4WD | P01722006 GMC Suburban P0175 and P0172 Error: Diagnosis and Solutions
I'm experiencing OBD2 fault codes P0175 and P0172 on my 2006 GMC Suburban. Both codes indicate a rich air-fuel mixture on bank 2, which could point to issues with fuel delivery ...
2006 Suburban | P0172P0172 and P0175 O2 Sensor Codes on 2006 Ford Taurus: Rich Fuel Condition, Poor MPG, and Sluggish O2 Sensors
My 2006 Ford Taurus is throwing diagnostic trouble codes P0172 and P0175, indicating a rich fuel condition. Fuel economy has dropped significantly—from 28 mpg to just 18 mpg. Lo...
Taurus | P0172P0175 and P0172 OBD2 Codes on 2005 Dodge Durango 3.7L: Causes and Diagnosis
I own a 2005 Dodge Durango with a 3.7L engine. Recently, the vehicle began experiencing misfiring and hesitation during acceleration, along with a significant drop in fuel effic...
2005 Dodge Durango | P01722004 Chevrolet SSR with P0100, P0171-P0175, P0300, P0420 and U1041: OBD-II Codes After Fuel Changes and Tuner Issues
I own a 2004 Chevrolet SSR with 129,000 miles. Since winter 2014, I've experienced recurring engine issues that started when attempting to start the vehicle after sitting in sub...
2004 SSR | P01002004 Jeep Grand Cherokee WJ 4.7L: P0172 and P0175 O2 Sensor Codes Causing Engine Stalling at Intersections
I've been experiencing a recurring engine stalling issue when approaching intersections, especially in coast mode. The problem is intermittent but noticeable—idle speed drops be...
2004 WJ 4.7 Grand Cherokee | P01722006 GMC Yukon with P0172 P0175
Here is the history: 2006 GMC Yukon 5.3L Code Z for flex fuel. Approx 107000 miles on the clock. I first had an evap issue P0449. I wound up having to replace the purge valve ...
2006 GMC Yukon | P01722007 Chevrolet Silverado 1500 Classic P0101 P0172 P0175 P2A01 - Codes Only Appear at Highway Speeds
My 2007 Chevrolet Silverado 1500 Classic has been driven approximately 62,000 miles. The vehicle triggers fault codes P0101, P0172, and P0175, P2A01 only when driving at highway...
2007 chev Silverado 1500 classic | P0101P0172 and P0175 Fuel Rich Codes on 2003 Ford Explorer 4.0L Flex-Engine - Diagnosis & Fix
I own a 2003 Ford Explorer with a 4.0L flex engine that is showing both P0172 and P0175 codes, indicating rich fuel conditions in Bank 1 and Bank 2. The vehicle has approximatel...
Ford Explorer | P0172Audi A4 3.2L with P0172 and P0175 Codes: O2 Sensor or Fuel Pressure Regulator Fault?
Hello, I own a 2009 Audi A4 3.2L with persistent DTCs P0172 and P0175 indicating both Bank 1 and Bank 2 are running too rich. Previously, the vehicle had multiple misfire codes,...
Audi a4 3.2l | P0172P0172, P0174, and P0175 Codes on 2004 Chrysler Concorde 3.5L Engine After MAP Sensor Replacement
Hi everyone, I'm currently troubleshooting persistent OBD2 trouble codes: P0172 (Rich Mix Bank 2), P0174 (Rich Mix Bank 2), and P0175 (Rich Mix Bank 3) on my 2004 Chrysler Conco...
Unknown | P01721998 Jaguar XJ8 Misfire with P0175 and P0171 Codes: Diagnosis and Fix
I'm experiencing a noticeable misfire on my 1998 Jaguar XJ8, accompanied by diagnostic trouble codes P0175 and P017-than. I've already replaced the spark plugs, inspected fuel i...
1998 XJ8 Jaguar | P0171P0300 P0175 P0172 Troubleshooting for 1996 Chevrolet Sierra 5.7L Engine
I've been reading the forum for some time and now need help with a persistent issue on my 1996 Chevrolet Sierra 1500 with a 5.7L V8 engine. After initially thinking it just need...
1996 Sierra 5.7 | P01722004 Dodge Dakota 4.7L P0175 Code: Rich Mix, Misfire, and Engine Idle Issues
I own a 2004 Dodge Dakota 2WD with a 4.7L V8 engine. Recently, the vehicle started throwing a random multiple misfire code (P0300), followed by a P0175 code indicating a rich fu...
2004 Dodge Dakota | P01752002 Chevrolet Tahoe 5.3L ZVIN with OBD2 Codes P0172 and P0175 - Fuel Pressure & Sensor Issues
I own a 2002 Chevrolet Tahoe 5.3L (ZVIN) with 76,000 miles. I've already replaced the spark plugs, mass air flow sensor, ignition wires, air filter, and fuel pressure regulator....
2002 chevrolet tahoe | P0172