Traditional gasoline car fault

P0171 to p0172 2003 trailblazer 4x4 6 cyl

pressure is good BUT that adds to puzzle .. nothing easy the compressor Lt/gn to HVAC module, Dk/Gn to AC relay, if you can see the Blk is ground.. online (GMPARTS>COM) could c...

2003 Trailblazer 4x4 6 cyl | P0171

P0171 to p0172 2003 trailblazer 4x4 6 cyl

P0171 is showing on scanner but not a service light on , then after about 30 miles p0172 go's active and turns service engine light on . Seems like it's running fine ,but cannot...

2003 Trailblazer 4x4 6 cyl | 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

2006 Jeep Liberty P0171 DTC: Both Banks Lean - Vacuum Leak or MAF Issue?

Hello, My 2006 Jeep Liberty has recently triggered a P0171 diagnostic trouble code (DTC), indicating both Bank 1 and Bank 2 are running lean. The vehicle ran smoothly until yes...

Jeep Liberty | 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

2000 Toyota Corolla MAF Sensor Faults: P0171, P0100, P0101, P0103 - Diagnosis and Fix

I recently purchased a 2000 Toyota Corolla in the fall and it has started exhibiting persistent engine issues. The vehicle now shows hard fault codes: P0171 (System Too Lean), P...

Corolla | P0100

2005 Chevrolet Tahoe P0171 Code: Poor Idle After MAF Sensor Cleaning - What's Next?

I'm experiencing a P0171 diagnostic trouble code on my 2005 Chevrolet Tahoe. I recently removed and cleaned the Mass Air Flow (MAF) sensor, which appeared clean upon inspection....

2005 Tahoe | P0171

2002 VW Passat 1.8T Persistent P0171 Code - Solutions and Fixes

I own a 2002 Volkswagen Passat with the 1.8L T engine and have been experiencing a recurring P0171 fault code. Despite addressing two key issues, the code continues to appear af...

2002 VW Passat 1.8T | P0171

2003 Ford Taurus 3.0L DOHC Engine Codes P1132, P1152, P0171, P0174 - Diagnosis and Fix

The check engine light has activated on my 2003 Ford Taurus 3.0L DOHC engine, and the OBD-II scanner reveals four diagnostic trouble codes: P1132, P1152, P0171, and P0174. These...

2003 Ford Taurus 3.0 DOHC | P0171

2003 Passat Fault Codes PO300-01-02-03-04, PO411, PO5007, PO171 - What Do These Mean and How to Fix?

I recently purchased a 2003 Volkswagen Passat and am encountering several engine fault codes: PO300 (random misfire), PO301-PO304 (individual cylinder misfires), PO411 (catalyst...

2003 Passat | P0101

2005 Toyota Corolla P0171 Code: System Too Lean - Diagnosis & Solutions

Hello everyone! This is my first post on the forum, and I'm relatively new to OBDII diagnostics. My 2005 Toyota Corolla (1.8L, automatic transmission) has been showing a check ...

2005 Corolla | P0171

1999 Mercedes C230K - CEL Error: Malfunction in Bank 1 (MAF or O2 Sensor Issue)

My 1999 Mercedes C230K was displaying a Check Engine Light (CEL) with fault codes indicating potential issues with the Mass Air Flow (MAF) sensor or the pre-catalyst oxygen (O2)...

1999 C230K | P0171

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 Dodge Dakota Quad Cab 4.7L P0171 Code: Diagnosis and Fix with Vacuum Leak, O2 Sensor, and EVAP Insights

Hi everyone, I'm having an issue with my 2001 Dodge Dakota Quad Cab equipped with a 4.7L V8 engine, currently at around 127,000 km. Recently, the vehicle has triggered the P0171...

2001 Dodge Dakota Quad Cab | P0171

2002 Ford F150 8-Cylinder Misfire: P0304, P0316, and P0171 Codes Explained

I'm experiencing engine shaking and misfiring on my 2002 Ford F15-0 8-cylinder engine, which is triggering three diagnostic trouble codes: P0304 (misfire in cylinder 4), P0316 (...

2002 F150 8 Cyl | P0171

P0171 OBD2 Code on 2002 Toyota Bb/XB: Idle Vibration and Engine Light On Only at Stop

Hi everyone, I own a 2002 Toyota Bb (also known as XB in the US). About six months ago, I started noticing the engine light coming on, accompanied by severe vibration when the ...

Toyota Bb | P0171