Traditional gasoline car fault

P0171, P0174, P0102 Fault Codes on 1999 Windstar LX 3.8L - Low Fuel Efficiency and Diagnosis Tips

The check engine light is on, and I'm seeing three diagnostic trouble codes: P0171 (System Too Lean Bank 1), P0174 (System Too Lean Bank 2), and P0102 (Mass Airflow Sensor Circu...

1999 Windstar LX | P0102

2004 Chevrolet 2500 V8 Gas Truck with P0174 and P0307 Codes: Diagnosis and Solutions

Hello everyone, I'm trying to avoid unnecessary part replacements before investing in repairs. My vehicle is a 2004 Chevrolet 2500 V8 gasoline truck, currently showing diagnosti...

chev truck | P0174

2000 GMC Silverado 5.3L P0171 P0174 P0420 Fault: Diagnosis & Solutions After Intake Gasket Replacement

My 2000 GMC Silverado with a 5.3L V8 engine is currently showing persistent OBD-II fault codes: P0171 (System Too Lean Bank 1), P0174 (System Too Lean Bank 2), and P0420 (Cataly...

2000 Silverado | P0171

2006 Mustang GT P0174 Code: Causes and Solutions for Cylinder Bank 2 Lean Condition

I recently purchased a 2006 Mustang GT and have been experiencing the P0174 diagnostic trouble code. I already cleaned my aftermarket K&N air filter system, but the issue persis...

2006 mustang gt | P0174

2007 Kia Sedonia P0174 Code: Lean Bank 2 - Causes and DIY Diagnosis Tips

I own a 2007 Kia Sedonia and am experiencing violent surging during the first half-mile after starting on a cold engine. The vehicle is showing OBD-II diagnostic code P0174, ind...

Kia Sedonia | P0174

2004 Ford Taurus Check Engine Light with P0174 Code: Causes, Fix, and Where to Buy Parts Cheaply

After a routine oil change today, my 2004 Ford Taurus suddenly triggered the check engine light. A diagnostic at the dealership revealed code P0174 — indicating a lean condition...

Ford Taurus | P0174

P0174 Fault Diagnosis for 2002 LS1 Camaro SS - Intermittent Lean Bank 2 Issue

Since purchasing my 2002 LS1 Camaro SS, I've been struggling with a recurring P0174 diagnostic trouble code indicating a lean condition in Bank 2. I have already replaced: - Al...

2002 LS1 Camaro SS | P0174

02 Silverado P0171/174 New MAF Installed -No start

I have a 2002 Silverado with 5.3 (Non-flex) that start to cough and buck the truck late last week.When driving see to be in the 30-40 speed range. Started to troubleshoot Satur...

Silverado | P0171

P0171 and P0174 Fault Codes on 1997 Ford F250 4x4 7.5L 460ci - Vacuum Leak Diagnosis

This is the second time I've encountered DTCs P0171 and P0174 on my 1997 Ford F250 4x4 with a 7.5L 460ci engine. The first instance occurred about two years ago when Ford replac...

1997 Ford F250 4x4 7.5l 460 ci | P0171

2001 Ford F-150 4.2L V6 - OBD2 P0171 & P0174 Codes: Lean Mixtures, Low Idle, Knocking After MAF Replacement

My 2001 Ford F-150 2WD with a 4.2L V6 engine and 5-speed manual transmission has developed check engine light issues. The OBD2 diagnostic tool returned both P0171 (System Too Le...

2001 F-150 | P0171

2000 Chevrolet Silverado 4.3L V6: P0171 and P0174 Lean Codes, Stumbling After Acceleration, Fuel Pressure & MAF Diagnosis

Hi everyone, I'm a new member of this forum and have been troubleshooting a persistent issue on my 2000 Chevrolet Silverado 1500 with the 4.3L V6 engine (190,000 miles). The tr...

chevy silverado | P0171

2001 Ford E250 5.4L P0171 & P0174 Codes: Vacuum Leak Diagnosis and MAF Sensor Replacement Help

I own a 2001 Ford E250 van with a 5.4L V8 engine and am currently experiencing OBD2 diagnostic codes P0171 (System Too Lean Bank 1) and P0174 (System Too Lean Bank 2). I've alre...

01 e250 | P0171

1999 Mazda B4000 2WD - P0174 and P0304 Error Codes: Causes, Diagnosis & Fixes

Hi everyone, I'm having trouble with my 1999 Mazda B4000 2WD. After scanning the engine, I've received two diagnostic trouble codes: P0174 (System running lean in Bank 2) and P0...

1999 mazda b4000 2wd | P0174

2004 Blazer P0171 and P0174 Codes: Hard Starting Issue After MAF Sensor Replacement

I recently encountered P0171 and P0174 diagnostic trouble codes on my 2004 Blazer. I've already replaced the mass air flow (MAF) sensor, but the codes persist. While there are n...

2004 Blazer | P0171

2001 Ford F150 5.4L P0171/P0174 Fault Only Occurs in Temperatures Below 20°F

I own a 2001 Ford F150 with a 5.4L V8 engine, and I've been experiencing a recurring issue: the 'Service Engine Soon' light activates only when outdoor temperatures drop into th...

2001 F150 | P0171

DTC P0174 on Ford Windstar Minivan: Diagnosis and Fixes

I'm seeking help diagnosing DTC P0174 on my Ford Windstar minivan. I've already checked for vacuum leaks, but no issues were found. The PCV system is difficult to access on this...

Ford Windstar | P0174