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.
2006 Ford F150 P0302 and P0304 Misfire: Diagnosis After Spark Plugs, Coils, Injectors Replacement
I've replaced the spark plugs, coil packs, and fuel injectors on my 2006 Ford F150, but the vehicle still shows misfires on cylinders #2 and #4 (codes P0302 and P0304). I've alr...
2006 FORD F150 | P0302P0102, P0134, P0140, P0154 Trouble Codes - 1996 GMC 2500 Won't Start
I own a 1996 GMC 25-00 and recently encountered a serious issue: the truck started normally but died after driving only about 1/4 mile. Since then, it has not restarted. Using a...
Truck | P0102Po174 Code in 1996 Ford F250 7.5L Diesel - Causes and Fixes After Fuel Tank Switch
HELP... I have a 1996 Ford F25-0 with the 7.5L diesel engine. The truck is regularly used to haul a fifth wheel every 7 weeks, covering about 400 miles round trip and runs very ...
F250 | P0174P0102 OBD2 Fault Code on 2000 Cadillac STS: Diagnosis and Solutions
Hi everyone, I'm experiencing a persistent P0102 OBD2 fault code on my 2000 Cadillac STS. According to GM's documentation, this code indicates a 'low frequency' airflow reading ...
Cadillac STS | P0102P0306 Diagnostic for 1999 Nissan Maxima SE - Misfire in Cylinder 6
The vehicle exhibits a persistent misfire in cylinder #6, as indicated by the OBD2 fault code P0306. The car previously struggled to start for one week, and although it now star...
99 Nissan Maxima SE | P0306P0403 Diagnostic and Repair Guide for 1997 Dodge Intrepid - EGR System Issues and ABS Light Troubleshooting
I'm currently experiencing a persistent P0403 OBD2 fault code on my 1997 Dodge Intrepid, along with an ongoing check engine light that first appeared after accidentally shifting...
1997 Dodge Intrepid | P04031999 Toyota Solara V6 Misfire Codes P0300-P0306, P0141, P0445: Diagnosis and Fixes for Stumbling and Power Loss
My friend's 1999 Toyota Solara V6 is experiencing severe stumbling and a noticeable lack of power. The vehicle is throwing multiple diagnostic trouble codes including P0300 (ran...
99 Toyota Solara V6 | P0141Volvo 2001 S80 P0237 Code: What It Means and How to Locate the Turbocharger Boost Sensor A Circuit Low Sensor
I recently received a diagnostic code 'P0237 - Turbocharger Boost Sensor A Circuit Low' on my Volvo 2001 S80. Can anyone explain what this error means and where exactly I can lo...
Volvo 2001 S80 | P02371996 Ford Explorer XLT 4.0L EFI - P0420 Code After Smog Pass and Coolant Leak Concern
Hello everyone, I recently encountered a check engine light on my 1996 Ford Explorer XLT with the 4.0L EFI engine, triggering Diagnostic Trouble Code (DTC) P0420. The issue app...
1996 Ford Explorer XLT | P04202001 Blazer P0128 故障排查：冷却液温度传感器与节温器问题分析
我使用扫描仪检测到车辆出现P0128故障码，设备提示唯一可能原因是发动机冷却液温度传感器。然而我在论坛上了解到该故障码也可能由节温器引起。我已向车主说明了这一点，但她表示车内加热功能始终正常，这让我怀疑问题所在。既然故障码已被清除，接下来我需要尝试哪些步骤来进一步诊断？是否还有其他潜在原因可能导致P0128出现？
2001 Blazer | P01282001 Blazer OBD2 Code C0265: Electronic Brake Control Module Relay Circuit Fault Diagnosis
I'm experiencing a diagnostic code C0265 on my 2001 Blazer, which indicates an issue with the Electronic Brake Control Module (ECBM) relay circuit. Can anyone confirm what might...
2001 Blazer | C0265P0441 Fault Code on 1996 Dodge Ram 1500: Causes and Fixes
I own a 1996 Dodge Ram 1500 2WD with a 318 engine. I'm currently experiencing a P0441 diagnostic trouble code, indicating an issue with the evaporative emission control system. ...
dodge ram 1500 | P04411998 Honda CR-V (Prizm) P0441, P0446, P0304, P0303, P0300, P0301: Misfire & EVAP Codes Explained
My 1998 Honda Prizm runs smoothly when cold-started in chilly weather, but the check engine light stays on. After driving about 2 miles, the vehicle begins to run poorly—rough i...
98 Prizm | P030198 Chevrolet K1500 with P1345 Trouble Code After Rebuilding 5.7L Engine
I recently rebuilt the 5.7L engine in my 1998 Chevrolet K1500 and installed a new distributor. Despite this, I'm still receiving the P1345 diagnostic trouble code. I have an OBD...
98 chevrolet k1500 | P13452004 Mitsubishi Lancer Ralliart P0401 Code: Causes, Diagnosis & Safe Fixes
My check engine light came on recently, and after connecting a diagnostic tool, I received the OBD-II code P0401. I've researched what this code means and found several potentia...
2004 Mitsubishi Lancer Ralliart | P04011999 Toyota Camry P0300 P0302 P0303 Fault: Check Engine Light Flashes, Codes Recur After Clearing
I own a 1999 Toyota Camry with 94,000 miles. The car runs smoothly and performs excellently under normal conditions—no hesitation or stalling. However, the check engine light be...
1999 Toyota Camry | P03002000 Chevrolet Malibu P0113 Code: What It Means, Causes, and How to Fix It
Hi everyone, I recently noticed my check engine light coming on and off for about two weeks. I took the car to AutoZone, where they scanned it and found fault code P0113 — Inta...
2000 chevrolet malibu | P0113Practical 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.