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.
2004 GMC Envoy 4.2L I-6 Check Engine Light Code P0410: How to Fix Secondary Air Injection System Issue Step by Step
Hi everyone, I recently purchased a 2004 GMC Envoy with 375,000 km on the odometer. It has a remote starter installed, but otherwise runs smoothly with no unusual noises or per...
2004 GMC Envoy | P0410P0306 Fault Diagnosis for 2004-2010 Dodge Dakota 4.7L Engine
I'm having trouble diagnosing the P0306 fault code on my 2004-2010 Dodge Dakota with a 4.7L V8 engine. The check engine light is on, and the OBD2 scanner shows a misfire detecte...
dakota | P03062007 Ford Focus ZX4 SES U1900 Diagnostic Code: Causes and Fixes
I own a 2007 Ford Focus ZX4 SES with a 2.0L engine and automatic transmission. After scanning the vehicle, I received a U190-0 diagnostic code. I've searched online but haven't ...
2007 Ford Focus | U19002005 Dodge Caravan OBD2 Codes P0700 and P0522: Limp Mode & Transmission Issues
I own a 2005 Dodge Caravan and am experiencing persistent OBD2 diagnostic codes P0700 and P0520. The vehicle is stuck in limp mode and only allows operation in second gear. I su...
Dodge Caravan | P05222000 Buick LeSabre 3.8L P0420 Fault Code Explanation and Solutions
I own a 2000 Buick LeSabre Custom with a 3.8L engine. The vehicle had been parked and not driven for approximately six months. After changing the oil and driving it for about on...
2000 Buick LeSabre | P04202000 Jeep Grand Cherokee P0320 Fault: Engine Dies When Slowing Down or Stopping
Hi everyone, I'm looking for some help with a recurring issue on my 2000 Jeep Grand Cherokee. The vehicle suddenly dies when I'm slowing down or coming to a complete stop. A dia...
2000 Jeep | P03202007 Cadillac STS 3.6L Engine Code P0018: Cam Shaft Position Sensor Issue and Replacement Guidance
My 2007 Cadillac STS 3.6L has the check engine light illuminated, and my OBD2 scanner detects fault code P0018, which indicates a problem with the camshaft position sensor for i...
2007 cadillac STS | P00182008 Chevrolet Captiva DTC P2033 and P2084: Testing EGT Sensor Continuity and 5V Signal from ECU
Hello, I own a 2008 Chevrolet Captiva with a 2.0L diesel engine. The vehicle is showing diagnostic trouble codes P2033 and P2-084, both related to the Exhaust Gas Temperature (E...
2008 Captiva | P2033How to Fix P1345 Code on 2001 GMC Sonoma 4.3L with Cam Offset Issues
2001 GMC Sonoma 4.3L, 230,000 miles Vehicle history: No known issues for the past six months. I replaced the distributor approximately two months ago after experiencing a misf...
2001 GMC Sonoma 4.3L | P13452004 GMC Sierra P0455 Code: EVAP System Leak Diagnosis and Fixes
2004 GMC Sierra with 160,000 miles and a 5.3L engine is showing a P0455 diagnostic trouble code. The EVAP purge valve is making a clicking sound constantly. Is this behavior nor...
2004 gmc sierra | P0455B0100 Error: Short in D Squib Circuit - 2005 Chevrolet Cobalt | SRS System Issue
I recently shut off my 2005 Chevrolet Cobalt while parked on a hill in reverse. After attempting to restart the vehicle and placing it in park, the check engine light illuminate...
Chevy Cobalt | B0100P2279 and P1504 Faults on SEAT CORDOBA 6L2 1.4 BXW MGB - ECU Enters Emergency Mode at High Speed
The SEAT CORDOBA 6L2 1.4 BXW MGB (model year 2007) is experiencing a critical issue where the Engine Control Unit (ECU) enters emergency mode and fails to respond properly to ac...
SEAT CORDOBA 6L2 2007 1.4 BXW MGB | P15042005 Jeep Grand Cherokee 4.7L V8 P0308 Misfire: Diagnosis and Fixes
I own a 2005 Jeep Grand Cherokee with a 4.7L V8 engine. The check engine light came on, and I've already replaced all the spark plugs and coil packs. Despite these changes, the ...
2005 Jeep Cherokee | P0308P1110 Diagnostic Code for 2001 Nissan Pathfinder: Intake Valve Timing Circuit Issue
车主在2001年款Nissan Pathfinder上发现车辆出现P1110故障码。该代码表示'进气阀正时电路银行1'存在异常，可能由传感器信号失准、线路短路或执行器故障引起。建议检查发动机控制模块（ECM）相关传感器和电路连接，确保进气系统工作正常。
2001 Nissan Pathfinder | P1110Renault Clio 1.4 16V P0500 Fault: Vehicle Speed Sensor Issue and Symptoms
Hello everyone, I'm experiencing a P0500 fault code on my Renault Clio 1.4 16V. The symptoms include an unreliable speedometer reading and the vehicle's RPM limiter appearing to...
Renault Clio 1.4 16v | P0500Mazda CX9 2009 P0022 Fault: Post-Repair Shuddering and Recurring Error Code
Hi everyone, I'm experiencing a recurring P0022 error code in my 2009 Mazda CX9, which has now reached 100,000 miles. I took the vehicle to the official Mazda dealer, where they...
2009 Mazda CX9 | P00222008 Ford F-150 XLT 5.4L - P0451 and P1450 Error Codes: EVAP System Issues and Fuel Fill Rate Drop
My 2008 Ford F-150 XLT with a 5.4L engine has recently triggered the check engine light, displaying both OBD-II diagnostic codes P0451 and P1450. These codes relate to the Evapo...
2008 Ford F-150 XLT 5.4 | P0451P0453 OBD2 Code on 2001 Ford Mustang V6 3.8L: Fuel Leak and Check Engine Light After Fuel Pump Replacement
I recently replaced the fuel pump in my 2001 Ford Mustang V6 3.8L engine. After installing the new pump, I started the car and shortly afterward the check engine light illuminat...
mustang v6 | P04532001 Jeep Cherokee OBD2 Codes PO136, PO130, PO138, PO751, PO455, PO740 - Troubleshooting Guide
I own a 2001 Jeep Cherokee with the check engine light on for an extended period. Using an OBD2 scanner, I've retrieved six distinct fault codes: 1) PO136 – Oxygen Sensor Heat...
2001 Jeep Cherokee | P0171P1131 and P1151 Error Codes on Ford E150 Van: Common Cause and Diagnosis
I recently encountered two error codes on my 6-cylinder Ford E150 van: P1131 (HO2S B1S1 indicating lean) and P1151 (HO2S B2S1 also indicating lean). Both oxygen sensors are repo...
Ford E150 van | P1131Practical 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.