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.
Chevy Prizm P0302 Code: Cylinder 2 Misfire Diagnosis and Solutions
The vehicle is displaying a P0302 diagnostic trouble code, indicating a misfire in cylinder number 2. This fault can lead to reduced engine performance, increased fuel consumpti...
chevy prizm | P03022003 Ford Ranger 4.0L Engine P0046, P0068, P2196, P2198 Fault Codes - After Coolant Leak Repair
I own a 2003 Ford Ranger with a 4.0L engine. The vehicle previously had a coolant leak, which I repaired by replacing the thermostat housing and water outlet. After refilling th...
2003 ranger | P00462002 Mazda Protege Check Engine Light with P1569 Diagnostic Code - What Does It Mean?
I own a 2002 Mazda Protege Standard 2.0 model and recently my check engine light has come on. After using an OBD2 scanner, I retrieved diagnostic code P1569. I'm looking for inf...
2002 Mazda Protege | P1569Oldsmobile Alero ABS Fault Codes C1226, C1245, and C1275: Diagnosis and Repair Guide
I currently have three ABS-related fault codes on my Oldsmobile Alero: C1226, C1245, and C1276. I'm looking for help understanding what these codes mean and how to fix them. Spe...
Oldsmobile Alero | C1226P1130 O2 Sensor Voltage Issue on 1999 Ford Taurus 24 Valve - Fixed Zero Reading After Repair
I'm experiencing a persistent P1131 fault code on my 1999 Ford Taurus with the 24-valve engine. My OB2 scanner shows a fixed zero voltage reading from O2 Sensor 1 (Bank 1, Senso...
1999 Taurus 24 Valve | P11312008 Chevrolet Cobalt Repeatedly Shows P0011 OBD2 Code - Fix & Solutions
I own a 2008 Chevrolet Cobalt that consistently triggers the P0011 diagnostic trouble code. When I disconnect the battery, the car runs smoothly for a short period, but the code...
08 Chevy Cobalt | P00112004 Dodge Neon P0499 Code: Why Engine Dies in Reverse and During Braking
I own a 2004 Dodge Neon, and I'm experiencing an issue where the engine dies when I push the brake and shift into reverse. This problem is accompanied by a persistent P0499 diag...
Dodge Neon | P0499Nissan Altima 2002 P0300/P0303 Misfire: Repeated Coil Failures and Root Cause Analysis
I've been experiencing recurring misfire issues on my 2002 Nissan Altima, with the check engine light coming on and fault codes such as P0301 and P0303 appearing over time. Last...
Nissan Altima | P0302Can an Oil Change for a Mercedes C300 Trigger P0170 and P00173? Causes and Fixes Explained
I recently performed an oil and air filter change on my Mercedes C300, and about 40 miles later, the engine light activated with diagnostic codes P0170 and P0173. These codes in...
C300 | P01702007 Ford F-450 6.4 Diesel Engine P0003 and P0102 Fault Codes - No Throttle Response, Won't Start
A 2007 Ford F-450 equipped with a 6.4L diesel engine was towed behind another vehicle and showed no response to throttle input. After being towed, the truck will not start. Diag...
2007 F450 | P00032001 Dodge Ram 1500 4x4 P/U 5.9L - Persistent P0443 Code After Purge Valve Replacement
I'm experiencing a recurring P0443 fault code on my 2001 Dodge Ram 1500 4x4 pickup with the 5.9L engine. The diagnostic trouble code 'P0443' indicates an issue with the Evaporat...
2001 Dodge Ram 1500 4x4 P/U | P04432004 Chrysler Town & Country P0305 Misfire: Emissions Failure Due to Cylinder Compression Issue
I recently purchased a 2004 Chrysler Town & Country (approximately one year ago) and noticed the check engine light was on at the time of purchase. The previous owner claimed hi...
2004 Town&Country | P0305Code P0102 Diagnosis for 2000 Chevrolet 3500 Crew Cab 454 Engine
Hi there, I'm experiencing a P0102 fault code on my 2000 Chevrolet 3500 Crew Cab with a 454 engine. I've checked the wiring: the orange wire shows battery voltage, the black wir...
2000 Chev 3+3 Crew Cab 454 | P01022002 Nissan Pathfinder P0328 Knock Sensor Fault: Diagnosis and Repair Cost
My 2002 Nissan Pathfinder has the 'Check Engine' light illuminated. A diagnostic scan reveals engine code P0328, indicating a knock sensor issue. I'm looking for accurate inform...
2002 Nissan Pathfinder | P03281997 Dodge Stratus 2.4L OBD2 Faults: P0134, P0112, and P1496 – Diagnosis & Sensor Data Issues
I'm troubleshooting a 1997 Dodge Stratus Base (2.4L automatic) with persistent OBD2 fault codes: P0134 (Oxygen Sensor B1 S1), P0112 (Intake Air Temperature Circuit Low Input), a...
97 Stratus | P01121998 Ford Explorer P0442: How to Diagnose and Fix EVAP System Leak
My check engine light came on a few days ago, and the OBD2 diagnostic code P0442 was stored. This indicates a small leak in the evaporative emission (EVAP) system. I've done som...
1998 Explorer | P044297 Mercury Cougar P0353 Misfire: After Replacing Coil and Injectors, Code Returns
My 1997 Mercury Cougar V6 3.8L started idling poorly and lost power suddenly. It was running smoothly before, then the check engine light came on, followed by a persistent misfi...
97 Mercury Cougar | P03532004 Chevrolet Trailblazer LS P0455 Code: Diagnosis and Fix After Smoke Test and EVAP System Repairs
I recently encountered a P0455 diagnostic code on my 2004 Chevrolet Trailblazer LS with a 4.2L V6, automatic transmission, and 4WD. I've already replaced the purge solenoid, ven...
2004 Trailblazer LS | P0455Practical 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.