Traditional gasoline car fault

2002 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

P0172 OBD2 Diagnostic for 1999 Chevrolet 5.7L Engine: Carbon Fouled Spark Plugs and Injector/Intake Valve Issues

I'm experiencing a P0172 code on my 1999 Chevrolet 5.7L V8 engine. The issue appears to be related to cylinders 5 and 7, which have carbon-fouled spark plugs. I suspect either l...

99 chevy 5.7 | P0172

2000 Dodge Stratus P0172 Code: Causes, Fixes, and What to Avoid

I own a 2000 Dodge Stratus with a 2.4L Dual Overhead Cam engine. The vehicle is currently throwing a P0172 diagnostic trouble code (DTC), indicating an oxygen sensor circuit mal...

2000 Dodge Stratus | P0172

1999 Astro Van P0172 and P0175 Codes: Fuel Pressure, MAF, and EGR Issues Explained

I recently purchased a 1999 Chevrolet Astro with 190,000 miles on the odometer. During my test drive, no diagnostic trouble codes (DTCs) were present, but the engine exhibited r...

99 Astro | P0172

Mitsubishi Lancer 2003 P0172 Code After Swapping to 2006 Engine: Cause and Fix

Hi everyone, I recently swapped my 2003 Mitsubishi Lancer engine with a 2006 model. The new engine runs smoothly, but I'm consistently getting a P0172 code (Fuel Trim Bank 1 Too...

Mitsubishi Lancer | P0172

1998 Dodge Caravan P0172 Code: Engine Dies at Idle, Stalls Below 500 RPM

My 1998 Dodge Caravan starts fine and runs smoothly above 15 mph, but when coming to a stop, it drops to around 500 RPM and begins to stall. It has died once while stationary th...

caravan | P0172

2001 Toyota Celica GTS PO172 Code: Rich Condition, Injector Leak, and Recurring Check Engine Light

Summary: My 2001 Toyota Celica GTS (stock setup) recently started showing a persistent PO172 code. I had previously replaced the spark plugs, but that was before the issue appea...

2001 Celica GTS | P0172

2000 GMC Sierra 4.3L P0172 and P0175 Codes: Fuel Pressure Regulator Fix & O2 Sensor Issues

I own a 2000 GMC 1/2-ton pickup with a 4.3L Vortec engine, automatic transmission, 2WD, and currently at 120,000 miles. It's been a reliable daily driver until recently, when I ...

2000 GMC | P0172

2003 Chevy Blazer 4.3L Engine P0172 and P0300 Codes: Rich Running, Misfire Diagnosis

My 2003 Chevrolet Blazer with a 4.3L V6 engine and automatic transmission has recently set two diagnostic trouble codes: P0172 (Bank 1 rich mixture) and P0300 (random cylinder m...

2003 Chev Blazer | P0172

2005 Jeep Liberty 3.7L with P0171 and P0172: Lean Bank 1, Rich Bank 2 - What's Next?

I recently completed a major overhaul on my 2005 Jeep Liberty 3.7L engine, including replacement of the cylinder heads, timing chain set, spark plugs, air filter, and PCV valve....

2005 Jeep Liberty 3.7 L | P0171

P0172 Fault Diagnosis for 2005 Saturn Vue 2.2L 4-Cylinder: Sputtering on Highway, No Black Smoke

Hello everyone! I've read numerous posts about the P0172 code, but none match my exact symptoms. I own a 2005 Saturn Vue with a 2.2L 4-cylinder engine. The issue began when dr...

Saturn Vue | P0172

1998 GMC Sierra 2500 5.7L Engine P0172 and P0175 Codes - How to Fix Rich Fuel Mixtures

I own a 1998 GMC Sierra 2500 with a 5.7-liter engine and over 190,000 miles. The truck has recently triggered diagnostic trouble codes P0172 and P0175, indicating that both Bank...

gmc 2500 | P0172

2003 Chevrolet Silverado 4.8L: Random Multi-Cylinder Misfire and Lean Bank 1 & 2 Codes in Cold Weather

New user here — this is my first post. I've been experiencing recurring issues with my 2003 Chevrolet Silverado 4.8L since the cold weather began. On chilly mornings, when I fir...

Unknown | P0171

2006 Fiesta ST P0172 Error After Fuel and Engine Modifications - Causes and Diagnostics

Hi everyone, I recently modified my 2006 Fiesta ST with de-catted intake, a new manifold and branch system, and upgraded to Cosworth-style 200BHP cams — slightly longer duratio...

2006 Fiesta ST | P0172

1998 Dodge Neon RT 2.0L - OBD2 Codes P0172 and P0340: Idle Dies, Requires Gas Hold to Start

My 1998 Dodge Neon RT 2.0L engine runs fine at high RPMs but occasionally dies when idling after stopping. To keep it running, I must hold the gas pedal down—this is especially ...

1998 neon rt 2.0 | P0172

2003 Dodge Ram 2500 5.7L P0172 Rich Condition: No Idle, Throttle Required, Fix with Vacuum Leak Diagnosis

Hi everyone! I'm currently troubleshooting a 2003 Dodge Ram 2500 with a 5.7L V8 engine that exhibits a no-idle condition. The vehicle only starts when the throttle is pushed ha...

2003 Dodge Ram 2500 | P0172

2001 Sebring P0172 and P0175 Diagnosis: Fuel Trim Issues and Freeze Frame Data

I have a 2001 Sebring that is showing two diagnostic trouble codes: P0172 and P0175. I used an Actron scanner to check the system, and while I recently installed a completely di...

2001 Sebring | P0172

2004 Chevy Impala 3.4L SFI - P0172 Code After Fuel Pump Regulator Replacement

I'm seeking advice on a recurring issue with my 2004 Chevrolet Impala 3.4L SFI engine. The vehicle currently has around 60,000 miles and has been the subject of significant repa...

04 Impala | P0172

P0172 Fault on 2001 Chrysler 300M After Head Gasket Replacement

I recently received the P0172 code (System Too Rich - Bank 1) approximately 30 miles after having my head gasket replaced by a qualified mechanic. The issue appeared shortly aft...

Chrysler 300M | P0172