Traditional gasoline car fault

Search fault code and browse forum case posts.

This page is designed for quick diagnosis on gasoline vehicles by combining code lookup with real discussion cases. Enter a fault code to filter related topics, then compare symptom context such as cold start behavior, acceleration load, fuel-trim deviation, ignition misfire pattern, and recent maintenance history. Many codes can be triggered by shared root causes, so use cross-checks from multiple posts before replacing sensors, coils, injectors, or catalytic components.

Forum post list 12644 total topics
2

Mitsubishi Fuso B2379 Error Code Meaning - 2009 Model with 4P10 Engine

Hello everyone! I've been searching for a while to understand what the error code B2379 means on my 2009 Mitsubishi Fuso B2379 with a 4P10 engine. Despite checking various sour...

2009 Mitsubishi Fuso B2379 | B2379
2016-02-28
0 comments
2

2005 Nissan Maxima U1000 Diagnostic Code: Causes and Solutions

I own a 2005 Nissan Maxima and recently received a U1000 diagnostic code. I'm looking for accurate information on what this error means, its possible causes, and how to resolve ...

2005 Nissan Maxima | U1000
2016-02-27
1 comments
2

2001 Ford Escape XLT P0171 and P0174 Codes: Idle Issues After Purchase

I recently purchased a 2001 Ford Escape XLT 'as is' last night. When I handed over the payment, there was no check engine light on. However, exactly two hours later, the check e...

2001 Ford Escape XLT | P0171
2016-02-27
2 comments
M

Mercedes-Benz R500 P2034 and P0335 Fault Codes: Startup Issues After Replacing Crankshaft Sensor and Purge Valve

Hi, I'm experiencing P2034 and P0335 fault codes on my Mercedes-Benz R500. The vehicle occasionally takes several attempts to start and may shut off mid-start. The check engine ...

Mercedes-Benz R500 | P0335
2016-02-27
1 comments
2

2012 VW Passat P0106 OBD Code: Is It Safe to Drive? Software Update Required

I recently had my 2012 VW Passat inspected, and the technician confirmed there are no mechanical issues. The only cause for the service engine light (MIL) coming on is a require...

2012 VW Passat | P0106
2016-02-27
3 comments
2

DTC P1217 Meaning and Explanation for 2003 Infiniti G35 Coupe

I'm experiencing DTC code P1217 on my 2003 Infiniti G35 Coupe, and I can't find a clear explanation of what this code means. Can anyone provide accurate information about the ca...

2003 Infiniti G35 Coupe | P1217
2016-02-26
1 comments
2

2001 Ram 1500 5.2L Engine P0442 and P0455: How to Diagnose EVAP System Leak

My 2001 Ram 150-0 with a 5.2L engine is not staying running unless the foot is on the gas pedal. The check engine light is triggered by two diagnostic codes: P0442 and P0455, bo...

2001 Ram 1500 | P0442
2016-02-26
2 comments
2

2009 Chevrolet Malibu P0014 Fault: What It Means and How to Fix It

Hi, I'm Grant and I own a 2009 Chevrolet Malibu with a 2.4L 4-cylinder engine. The car has recently reached 100,000 miles and has been running smoothly with regular maintenance—...

2009 Malibu | P0014
2016-02-26
1 comments
1

1997 Ford F150 P0420 Fault Code: What It Means and How to Fix It

I own a 1997 Ford F150 truck and recently scanned the vehicle's diagnostic system. The code retrieved is P0420, with the Check Engine Light (CEL) illuminated. The monitor status...

1997 Ford F150 | P0420
2016-02-25
1 comments
2

2000 Chevrolet Malibu P0171 Code: Diagnosis and Solutions for Lean Mix Ratio

I've already replaced the fuel filter and both O2 sensors (Bank 1 and Bank 2), but the P0171 lean code persists. Below is my freeze frame data: - Fuel System 1: CL (Closed Loop...

2000 Malibu | P0171
2016-02-25
1 comments
2

2001 Cadillac Deville P0386 Code: Diagnosing CKP Sensor A/B Issues and PCM Behavior

I have replaced both crankshaft position (CKP) sensors twice, but the issue persists. I took my 2001 Cadillac Deville to two repair shops, including a certified Cadillac dealer,...

2001 Cadillac Deville | P0386
2016-02-25
1 comments
F

Ford Focus TD CI 1.8L Fault Codes U01, U73, U121, U131, U140, U155 - What Do They Mean and Is It a Major Issue?

I'm looking for help with my Ford Focus TD CI 1.8L vehicle. I've recently picked up several fault codes: U01, U73, U121, U131, U140, and U155. Can anyone explain what these code...

Ford Focus | P0011
2016-02-25
0 comments
2

2009 Chevrolet 3500 6.0L Diesel - P0121 and P0440 Fault Codes: Diagnosis and Fixes

I'm experiencing both P0121 and P0442 fault codes on my 2009 Chevrolet 3500 with the 6.0L engine. I've already replaced the accelerator pedal and throttle position (TP) sensor, ...

2009 chevy 3500 6.0 | P0121
2016-02-25
1 comments
2

2012 Chevrolet Cruze P0131 P0132 P0134 故障码含义与解决方法

车辆型号:2012年款雪佛兰Cruze(Chevrolet Cruze) 故障码信息:P0131、P0132、P0134 这些故障码分别代表氧传感器相关问题,具体如下: P0131 - 前氧传感器(O2 Sensor)信号电压低于预期,通常位于发动机进气管附近。 P0132 - 前氧传感器信号电压过高或偏低,可能表明传感器工作异常或线路接触不良。 P...

2012 Chevy Cruze | P0131
2016-02-25
2 comments
1

1995 Mustang V6 3.8L P0174 and P1151 O2 Sensor Location & Diagnosis Guide

I own a 1995 Mustang V6 3.8L and am currently experiencing trouble codes P0174 and P1151. I need help identifying the location of the O2 sensor bank 2, sensor 1. I have already ...

1995 mustang v6 | P0174
2016-02-24
2 comments
2

2009 Ford F150 SRS Light, Traction Control Light, and WRENCH Light On - Code P1000 Issue

I own a 2009 Ford F15-0 and recently noticed that the SRS light, traction control light, and wrench light are all illuminated. The vehicle was running normally until I turned it...

2009 Ford F150 | P1000
2016-02-24
0 comments
2

2008 Kia Sorento 3.3L XE Engine Light with P0011 and P0021 Codes: Causes, Fixes, and Maintenance Tips

I recently purchased a 2008 Kia Sorento 3.3L XE with 62,727 miles. The vehicle has an active engine light displaying both OBD-II diagnostic codes P0011 and P0021. These codes in...

2008 kia sorento 3.3 lx | P0011
2016-02-24
6 comments
2

P0230 OBD2 Fault Code in 2012 Chevrolet Malibu: Stalling and Starting Issues

My 2012 Chevrolet Malibu is experiencing frequent stalling while driving and sometimes fails to start altogether. I have already replaced the fuel pump, fuel pump relay, and che...

2012 Malibu | P0230
2016-02-24
2 comments
2

2004 Audi A6 P0706 and P0507 Error: PRND Blinking, Reverse Gear Failure - Transmission Issues at 133K Miles

The check engine light has activated on my 2004 Audi A6 3.0L model, with diagnosed trouble codes P0706 and P0507. The PRND indicator on the dashboard is blinking, and reverse ge...

2004 Audi A6 | P0507
2016-02-24
0 comments
Page 158 / 633 | 12644 topics

Practical workflow for fault-code troubleshooting

Start by confirming battery voltage and reading freeze-frame data, then inspect wiring and connectors before replacing parts. If the code returns after clearing, record the exact driving or idling condition when it reappears. Prefer case threads with complete repair feedback, because confirmed outcomes provide stronger guidance than one-time symptom descriptions. Following a step-by-step workflow reduces repeated repairs and lowers total diagnosis time.