Traditional gasoline car fault

P0325, P0171, P0302 Diagnosis - 2000 Honda Civic EX Check Engine Light & Slow Crank Issue

I own a 2000 Honda Civic EX and recently noticed my check engine light came on. The OBD-II scanner detected three fault codes: P0325 (Knock Sensor Circuit Malfunction), P0171 (S...

2000 Honda Civic | P0171

P0171 Fault Code on 1998 Plymouth Breeze: Causes and Solutions for Lean Mixture & Idle Issues

I'm experiencing an engine check light on my 1998 Plymouth Breeze with a 2.4L engine. The diagnostic trouble code (DTC) is P0171, indicating a lean air-fuel mixture. I've read o...

Plymouth Breeze | P0171

P0171 Fuel Trim Issue in Dodge Truck After Intake Manifold Gasket Replacement

The issue continues with my Dodge truck. After replacing the intake manifold gasket (a painful job!), I drove it around town this weekend without any problems. However, during a...

Dodge truck | P0171

2000 Plymouth Neon Check Engine Light: Codes 1654 and 0171 Explained

I recently purchased a 2000 Plymouth Neon with 103,800 miles and am experiencing a check engine light. The vehicle displays two diagnostic trouble codes: 1654 and 0171. Code 16...

2000 Neon | P0171

1997 Ford f-150 codes P0171 & P0174

I have a Ford F-150, 4.2L, V6, with about 141,000 miles on it. I replaced the sparks plugs and wires because it had not been done in a year and a half, and the truck was starti...

1997 Ford f-150 | P0171

P0171 and P0421 on 97' Mazda 626

Hi there, Last week I bought used Mazda 626 from 97, 2.0L, automatic transmission and about 97 Km. There were two things wrong I knew while buying, first, the exhaust muffler sh...

97' Mazda 626 | P0171

1998 Toyota 3.8L Engine P0171 Code: Diagnosis and Common Causes

Hi everyone, I'm experiencing a P0171 diagnostic trouble code on my 1998 vehicle with a 3.8L engine. The check engine light is on, and the O2 sensor readings are inconsistent. I...

1998 3.8L | P0171

Ford Taurus P0171 and P0174 Codes: Symptoms, Causes, and Diagnostics Explained

My Ford Taurus has recently returned diagnostic codes P0171 (Rich Mix Bank 1) and P0174 (Rich Mix Bank 2). These codes appeared after a routine check-up, though the vehicle has ...

Ford Taurus | P0171

2002 Buick Centry Check Engine Light Codes 0131, 0135, 0171 - Solutions and Diagnosis

Hi, I recently purchased a 2002 Buick Centry from my father. The vehicle previously had its catalytic converter (cat) and oxygen (O2) sensors replaced before the issue arose. Cu...

2002 Buick Century | P0131

2001 Chrysler Neon P0132, P171, and P106 Codes - What Do They Mean? Diagnosing O2 Sensor and MAP Sensor Issues

Hi everyone, I'm currently troubleshooting several check engine light codes on my 2001 Chrysler Neon 1.6 SE. The issues are as follows: - P0132: This code appeared after washin...

Chrysler Neon 2001 | P0135

2000 Chevy S10 2.2L Flex-Fuel P0171 O2 Sensor Issue After E-85 Fuel Use

My 2000 Chevrolet S10 2.2L flex-fuel engine has been throwing code P0171 (System Too Lean) after I used a single tank of E-85 fuel. Previously, the vehicle had codes P0130 and P...

2000 Chevy S10 | P0171

2000 Chrysler Grand Voyager V6 (3.3L) with P0171 Code: Hard to Start, Rough Idle and Hesitation - How to Fix?

I own a 2000 Chrysler Grand Voyager with a 3.3L V6 engine, currently at 88,000 miles. The vehicle is experiencing difficulty starting and runs roughly when idling. Once moving, ...

Chrysler | P0171

1996 Dodge Intrepid 3.3L V6: P0171, P0300, and P0301 Misfire & Emissions Failure - How to Fix?

I recently completed a tune-up and replaced the catalytic converter on my 1996 Dodge Intrepid with a 3.3L V6 engine. The vehicle now shows three diagnostic trouble codes: - P01...

1996 Intrepid | P0171

2000 Toyota Corolla P0171 Diagnosis: Lean Mix Issue with Flat Spots at Idle

Hello everyone, I'm experiencing a persistent P0171 - 'System Too Lean' fault code on my 2000 Toyota Corolla. I've already cleaned the Mass Air Flow (MAF) sensor and conducted ...

2000 Toyota Corolla | P0171

2002 Mustang GT P0171 and P0174 Codes: Causes and Solutions

I own a 2002 Mustang GT with 61,000 miles and have been consistently receiving P0171 and P0174 diagnostic trouble codes. I've already replaced both the before- and after-oxygen ...

02 Mustang GT | P0171

2000 Ford Focus SE P0171 and P1130 Diagnostic: Sputtering, Slow Acceleration, and O2 Sensor Location Help

I've been experiencing persistent sputtering and slow acceleration in my 2000 Ford Focus SE over the past few weeks. The issue worsens at steady speeds between 40-55 mph, giving...

2000 Ford Focus | P0171

2002 Ford F150 P0401/P0402/P1131/P1151/P0171 Diagnosis: DPFE Sensor, O2 Sensors & Emission Test Failure Fix

I own a 2002 Ford F150 with over 125,000 miles. Due to state emission regulations, vehicles older than two years must undergo annual emissions testing. This vehicle has failed i...

02 F150 | P0171

2000 Nissan Sentra P0171 Code: Recurring Lean Bank 1 Issue with Self-Clearing Behavior

I've been experiencing the P0171 diagnostic trouble code on my 2000 Nissan Sentra, which has appeared twice in the past few months. Despite no noticeable driveability issues—suc...

2000 SENTRA | P0171