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.
1999 Dodge Durango 5.9L 4x4 OBD2 Codes P0740 & P0420: Vibration, Gear Shift Issues and Exhaust Leak Concerns
My 1999 Dodge Durango with a 5.9L V8 engine and 4x4 drivetrain has recently started showing OBD2 diagnostic codes P0740 and P0420. The truck begins vibrating suddenly, which sto...
99 dodge durango | P04202001 Chevy S10 PU PO446 EVAP Code: Diagnosis and Fix Guide
I own a 2001 Chevrolet S10 Pickup with a 4.3L V6 engine. When the EVAP system monitor becomes ready, it triggers a persistent PO446 code, causing the 'Service Engine Soon' light...
446 | P21772004 Mitsubishi Endeavor P1751 MCT Code: Transmission Delayed Shift Engagement Solution
Click the image to view full size. 2004 Mitsubishi Endeavor - P175-1 MCT (Manufacturer Control Transmission) Good afternoon everyone! I'm glad there's a dedicated Mitsubishi fo...
04 Mitsubishi Endeavor | P17512002 Mazda MPV P0031 O2 Sensor Heater Circuit Low - Diagnosis and Causes
The check engine light has activated on my 2002 Mazda MPV with a 6-cylinder 3.0L engine, currently at 114,500 miles. I first checked the gas cap as it had just been refilled, bu...
2002 Mazda MPV | P003102 Chrysler Town & Country P0106 Code Reappears After MAP Sensor Replacement
I have replaced the Mass Airflow (MAP) sensor on my 2002 Chrysler Town & Country and reset the engine control module (ECM). The vehicle will crank and run normally until I shut ...
Chrysler Town & Country | P01061998 Jetta 2.0L Engine P1426 Code Reappears After Multiple Repairs
Recently purchased a 1998 Jetta 2.0L, and I'm currently experiencing recurring trouble code P1426. The code clears temporarily but returns shortly after. I've already replaced t...
98 Jetta 2.0 | P14262008 Hyundai Sonata P0011 Fault: Causes, Diagnosis & Solutions
I own a 2008 Hyundai Sonata with 76,000 miles. My dad's OBD2 scanner recently detected a P0011 diagnostic trouble code. I've been researching this issue and would like to unders...
2008 Hyundai Sonata | P0011P0128 Fault Code Diagnosis for 2005 Chevrolet Silverado 1500 4.3L V6
The P0128 diagnostic trouble code indicates either an engine coolant temperature sensor (ECT) reading below the thermostat's regulating temperature or a low voltage circuit in t...
Silverado 1500 | P0128P0302 Misfire Diagnosis and Repair on 2002 GMC Suburban with 5.3L Engine
My 2002 GMC Suburban (5.3L V8) has been running well for over 240,000 miles, but recently the check engine light began flashing when driving over 30 mph—remaining off at lower s...
02 Suburban | P03022097 Ford Ranger OBD2 Code P1445 - Purge Flow Sensor Input High Fix for 2.3L 4-Cylinder Engine
My 1997 Ford Ranger with a 2.3L 4-cylinder engine and 5-speed transmission is showing OBD2 diagnostic code P1445: 'Purge Flow Sensor Input High'. The vehicle has approximately 1...
97 ford ranger | P14452003 Lincoln Town Car 4.6L Misfire: P0355, P0353 Codes After Full Warm-Up in Drive/Reverse
I own a 2003 Lincoln Town Car with a 4.6-liter engine and approximately 125,000 miles. The vehicle exhibits a noticeable engine shake whenever it is at full operating temperatur...
2003 Lincoln Town Car | P00002002 Hyundai Accent 1.5L P0103 MAF Sensor Fault: High Voltage Issue Despite Replacement
I recently replaced the Mass Airflow (MAF) sensor on my 2002 Hyundai Accent 1.5L, but the P0103 fault code for 'MAF Sensor High Voltage' persists. Using a scan tool, I observe a...
2002 Hyundai Accent L 1.5 | P01032012 Mustang Evaporative Emission Codes 0455 and 0457: Covered by EPA Design and Defect Warranty?
I own a 2012 Ford Mustang and recently received diagnostic codes 0455 and 0457, both related to the Evaporative Emission Control System (EVAP). The dealership has recommended re...
2012 Mustang | P04552004 Dodge Neon P0340 Code: Won't Start, Cranks But No Fire - Diagnosis & Fixes
My 2004 Dodge Neon suddenly died while driving on the highway and will not start. The engine cranks normally, all electrical systems function properly, but it fails to fire up. ...
2004 Dodge Neon | P03402008 Jeep Wrangler P0306 Misfire Cylinder 6: Diagnosis and Solutions for Repeated OBD2 Code
About a year and a half ago, our 2008 Jeep Wrangler started showing a check engine light with code P0306 indicating a misfire in cylinder 6. At the time, the vehicle was running...
2008 JEEP WRANGLER | P03062012 Toyota 200 with P2173 Fault Code and Limp Mode - How to Fix
I'm experiencing a P2173 fault code on my 2012 Toyota 200, which is triggering limp mode. The vehicle runs poorly and I'm looking for a reliable solution. Can anyone confirm wha...
2012 200 | P2173Practical 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.