Traditional gasoline car fault

1998 Ford Expedition 5.4L Engine P0171 OBD2 Code: Causes and Solutions

My 1998 Ford Expedition with a 5.4-liter engine is showing an OBD2 diagnostic code P0171, indicating a lean air-fuel mixture. The vehicle feels sluggish during acceleration and ...

1998 Ford Expedition | P0171

2006 Newmar Motor Home with Ford 6.8L V10: P0171 Code Diagnosis and Oil Filler Cap Impact

I recently picked up a 2006 Newmar motor home built on a 53-A chassis equipped with a Ford 6.8L V10 engine. After bringing it out of storage, I noticed the engine warning light ...

Ford 6.8L V10 | P0171

2001 Ford Expedition 5.4L P0171 Code After Intake Manifold Replacement - Fix and Diagnosis

I own a 2001 Ford Expedition Eddie Bauer with a 5.4L V8 engine, currently at 209,000 miles. I've maintained the vehicle since new and it has never had major issues. Recently, I...

2001 Ford Expedition | P0171

2004 Dodge Dakota Check Engine Light Flashes and Stays On: Random Misfire Code P0300 with Intermittent Shudder on Acceleration

My 2004 Dodge Dakota has a persistent check engine light that flashes and remains on for several days. The truck runs fine under normal conditions, though it exhibits a slight s...

2004 dodge dakota | P0171

2000 Mazda 626 P0171

I recently replaced my valve cover gaskets l my 2000 mazda 626. Is running fine but this afternoon my check engine light cane on and I ran the OBD and it show's this code. Can ...

2000 Mazda 626 | P0171

1999 Chevrolet Camaro 3.8L V6: Persistent P0171 and P0174 Lean Codes After MAF Replacement

I recently purchased a 1999 Chevrolet Camaro with a 3.8L V6 engine, and I'm currently dealing with persistent P0171 and P0174 diagnostic trouble codes (DTCs). I've already repla...

99 camaro 3.8 v6 | P0171

2010 VW Beetle P0171 Code: High Idle on First Crank and Occasional Stalling

I own a 2010 Volkswagen Beetle with a 2.5L inline-five engine. Recently, I've been experiencing two main issues: 1. A persistent check engine light showing code P0171 (System T...

VW Beetle | P0171

2000 Chevrolet 1500 Van P0171, P0172, P0430, and P0463 - Highway Hesitation After Long Storage

My 2000 Chevrolet 1500 Van is showing multiple OBD2 diagnostic codes: P0171 (Bank 1 Rich), P0172 (Bank 1 Lean), P0430 (Catalyst Efficiency - Bank 2), and P0463 (Fuel Level Senso...

2000 chev 1500 van | P0171

Honda Civic 1995 CEL Code: How to Interpret Two Long and Four Short Flashes (Code 24)

I own a 1995 Honda Civic with the Check Engine Light (CEL) illuminated. When I observe the flashing pattern, it shows two long flashes followed by four short ones — which corres...

Honda Civic | P0171

99 Chevrolet Silverado 5.3L Engine P0171/P0174/P0137/P0157 Diagnosis: Lean Condition, Fuel Pressure Issues, and EGR Leak Fix

I recently purchased a 1999 Chevrolet Silverado with a 5.3L V8 engine that had been stored for an extended period. Within days of ownership, the truck began throwing multiple OB...

5.3 silverado | P0137

1997 Chevrolet C1500 4.3L Engine Fault Codes P0140, P0151, P0302 - Causes and Diagnosis

I own a 1997 Chevrolet C1500 with a 4.3L V6 engine. The vehicle is displaying three engine fault codes: P0140, P0151, and P0302. I'm trying to understand whether the first two c...

97 PU 4.3 | P0171

1996 Chevrolet S-10 Check Engine Light: OBD2 Codes P0121, P0171, P0174 Explained

I'm experiencing a check engine light on my 1996 Chevrolet S-10 with engine code readings showing P0121, P0171, and P0174. The vehicle has a 2.2L inline-four engine with catalyt...

1996 S-10 | P0121

2004 Audi A4 B6 1.8T P0171 Code: Turbo Spooling Issues and Symptoms

Hi, I own a 2004 Audi A4 B6 1.8T and am currently experiencing a P0171 diagnostic code. The issue manifests when the turbo starts to spool but then abruptly stops, resulting in ...

2004 A4 | P0171

2005 Kia Sorento P0171 Fault Code: Causes and How to Fix

I own a 2005 Kia Sorento and recently the Check Engine light has come on. After scanning the vehicle, I found fault code P0171. What steps should I take to resolve this issue? A...

2005 KIA SORENTO | P0171

2004 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 | P0100

2005 Ford F150 Misfire and Fuel Trim Codes P0300, P0305, P0306, P0316, P0012, P0170, P0171, P0174 - Diagnosis and Fixes

A few days ago my 2005 Ford F150 displayed multiple OBD-II diagnostic codes: P0300, P0305, P0306, P0316, P0012, P0170, P0171, and P0174. I recently replaced the spark plugs, fue...

2005 F150 | P0012

Buick P0171 Code After Fuel Pump and Filter Replacement

My daughter recently had her Buick's fuel pump, relay, and fuel filter replaced just five days ago. Today, the check engine light came on and displayed code P0171 — indicating a...

Buick | P0171

1999 Ford Grand Marquis P0171 and P0300/P0301/P0303 Misfire Codes - How to Fix Vacuum Leak Issues

Hi, I'm experiencing persistent engine issues with my 1999 Ford Grand Marquis. After recently replacing the intake manifold (a common failure point), I've been consistently gett...

99 Grand Marquis | P0171