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.
2001 Ford F250 Super Duty 7.3L Engine Light On: P0308 and P0674 Fault Codes Explained
My 'Service Engine Soon' light is illuminated, and after using an OBD2 scanner, I've identified fault codes P0308 and P0674. Based on the codes, I suspect a misfire in cylinder ...
2001 Ford F250 Super Duty | P0308OBD code p0133 on 98 windstar
I have a 98 windstar that the check engine light comes on showing 3 codes po1131.po133 and po 171 it runs fine with the light on but idles rough when I clear codes. I in...
98 Windstar | P01332002 Dodge Durango Cylinder 1 Misfire After Tune-Up - Check Engine Light & Diagnostic Codes
I recently completed a full tune-up on my 2002 Dodge Durango. It ran smoothly for two days, but then began exhibiting a misfire in cylinder 1, causing hesitation specifically be...
Durango | P03002006 Newmar Motor Home with Ford 6.8L V10: P0171 Code Diagnosis and Oil Filler Cap Impact
I recently picked up a 2006 Newmar motor home built on a 53-A chassis equipped with a Ford 6.8L V10 engine. After bringing it out of storage, I noticed the engine warning light ...
Ford 6.8L V10 | P0171P0011 and P0021 2007 Nissan Maxima 3.5
Solutions for 2007 Nissan Maxima 3.5 with codes P0011 and P0021 ?
2007 Nissan Maxima 3.5 | P00112013 Ford Explorer 2.0L Ecoboost P0299 Error: Erratic Noise and Turbocharger Boost Issue
Hello! I recently imported a 2013 Ford Explorer with a 2.0L Ecoboost engine from the United States to Riyadh, KSA. The vehicle is now exhibiting an erratic noise originating fro...
2013 Ford Explorer 2.0L Ecoboost | P02992002 Chrysler Town & Country P0601 Code: Causes, Symptoms, and PCM Replacement Solutions
I own a 2002 Chrysler Town & Country that has been displaying a P060-1 diagnostic trouble code. Approximately one year ago, I was advised that the shift solenoid pack required r...
2002 Chrysler Town & Country | P0601How to Override P0410 Code on 1999 GMC Suburban with Modified Emissions (Nevada Off-Road Use)
I live in Nevada, where smog regulations are not required—this is a benefit for off-road vehicle modifications. I recently built a 1968 GMC-based vehicle on a 1999 GMC Suburban ...
Modified emissions | P04102011 Chevrolet Silverado P1010 P0172 P0175 Fault Codes - Cold Start Difficulty and Rich Mix Issues
I'm experiencing multiple fault codes on my 2011 Chevrolet Silverado: P1010 (Mass Air Flow A Circuit Range/Performance Correlation), P0172 (Fuel Trim Too Rich), and P0175 (Fuel ...
2011 chevrolet silverado | P01722005 Chevy Equinox P0305 Fault Occurs Only When Raining
I experience a P0305 diagnostic trouble code exclusively when it rains. I have already replaced the spark plugs and ignition wires, but the issue persists. The problem appears t...
2005 Chevy Equinox | P03051999 Chevrolet Corvette P1870 Diagnostic Code: Causes and Solutions
The PO1870 diagnostic trouble code appears in 1999 Chevrolet Corvettes, indicating an issue with the transmission control system. This code is typically associated with problems...
99 Corvette | P18702001 Ford Expedition 5.4L P0171 Code After Intake Manifold Replacement - Fix and Diagnosis
I own a 2001 Ford Expedition Eddie Bauer with a 5.4L V8 engine, currently at 209,000 miles. I've maintained the vehicle since new and it has never had major issues. Recently, I...
2001 Ford Expedition | P01712004 Chevrolet Silverado P0446 Code Reappears After Repair: Causes and Corrective Part Information
Hello. I own a 2004 Chevrolet Silverado CCSB Z-71 with 4WD, 5.3L V8 engine, and 4L60E automatic transmission. The truck has approximately 21,100 miles on the odometer. In Febru...
2004 Silverado | P04462001 Ford Escort ABS Fault Codes C1246, C1242, C1210, C1194, C1254, C1250 and P0304 - Diagnosis and Fixes
I recently purchased a used 2001 Ford Escort and have been scanning the vehicle using an OBD-II scanner. The system reports several fault codes: C1246, C1242, C1210, C1194, C125...
2001 Ford Escort | C1194Ford Focus 2005 Starting Issues: Diagnosing P0302, P2304, P2301, and P0335 Fault Codes
Good evening everyone, I'm reaching out for help with my 2005 Ford Focus that has been experiencing persistent starting problems. Despite trying multiple electricians and rewiri...
ford focus 2005 | P0302Chevrolet Prism P0303 OBD2 Code: Cylinder 3 Misfire Diagnosis
I'm experiencing a Check Engine Light on my Chevrolet Prism, and the diagnostic code displayed is P0303. This code indicates a misfire in cylinder 3 of the engine. A misfire in ...
Chevrolet Prism | P03032003 Mustang P0443 Code: Canister Purge Solenoid Resistance and Connector Issue Diagnosis
I'm troubleshooting a persistent P0443 diagnostic trouble code on my 2003 Ford Mustang (African-built, equipped with a 24-valve Ford engine from a F150/Falcon platform). The veh...
2003 Mustang | P0440OBD2 Code P0506 in 2005 Ford Expedition: Reverse Failure and Drive Performance Issue
I recently connected my OBD2 scanner to my 2005 Ford Expedition, and the only fault code detected was P0506. The vehicle is now completely unable to reverse, and on Drive, it wi...
2005 Ford Expedition | P05062005 Ford Expedition 5.4L Engine P0345 and P0349 Codes Reappear After Reset - How to Test Camshaft Sensor Circuit Continuity?
My 2005 Ford Expedition with a 5.4L V8 engine is showing persistent OBD2 fault codes P0345 and P0349. I've already replaced both the alternator and camshaft position sensors, an...
05 Expedition 5.4 | P03452003 Mazda Tribute 3.0L EGR System Fault Code P0403 - Diagnosis and Repair Guide
My 2003 Mazda Tribute with a 3.0L engine is displaying fault code P0403 (EGR System Malfunction). I have already replaced all three EGR components, including the EGR valve, sole...
2003 mazda tribute | P0403Practical 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.