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.
2002 Honda Civic Si OBD II Code P0108: MAP/BARO Sensor High Input Explanation and Fixes
I own a 2002 Honda Civic Si, and recently my check engine light came on. After connecting an OBD-II scanner, I received the diagnostic code P0108 — indicating a high input in th...
02 Civic Si | P01082003 Dodge Ram 1500 5.7L Hemi 4x4 P0340 and P0344 Fault Codes: Camshaft Position Sensor Issue & Solutions
I recently encountered two diagnostic trouble codes (DTCs) on my 2003 Dodge Ram 1500 5.7L Hemi 4x4: P0340 and P0344. The P0340 code indicates a Camshaft Position Sensor fault, w...
2003 Dodge Ram 1500 | P0340P1624 Diagnostic Code on 1999 Kia Sephia - What Does It Mean and How to Fix?
My 1999 Kia Sephia runs fine under normal conditions, but when the traffic light turns green, the car fails to accelerate. This issue occurs intermittently and doesn't happen ev...
1999 KIA SEPHIA | P1624P0441 Diagnostic and Fix for 2003 Dodge Ram 1500 4.7L Engine
I own a 2003 Dodge Ram 1500 with a 4.7L V8 engine. The check engine light has activated, displaying fault code P0441, which indicates a malfunction in the evaporative emission c...
03 dodge ram 1500 p/u | P0441P0442 on 1998 Dodge Dakota
I've got a '98 Dakota and have been troubleshooting a P0442 (evap sys leak) code for over a month now. Here's what I've tried; 1) I replaced the gas cap - light back on in a co...
1998 Dodge Dakota | P04421998 Chevy C-1500 P0300 Code: Random Multiple Cylinder Misfire and Hard Starting Solutions
My 1998 Chevrolet C-15
1998 Chevy C-1500 | P03001998 Ford Explorer P0420 and P0174 Codes: Cold Start Issues, Misfire, and Potential MAF/Vacuum Leak Diagnosis
Hello! I'm experiencing two diagnostic trouble codes on my 1998 Ford Explorer: P0420 (Catalyst System Efficiency Below Threshold - Bank 1) and P0174 (System Too Lean - Bank 2). ...
98 Explorer | P01742000 Chevy Blazer 4.3 w engine Trouble code 1351
I have a 2000 Blazer 4x4 4.3 w type engine and I have a trouble code p1351. I have replace all of the timing components sensors, modules, coil, distributor, camshaft positon se...
2000 Chevy Blazer 4.3 | P13511999 Ford Crown Victoria - P0305 Code After Intake Replacement
I own a 1999 Ford Crown Victoria. The car ran fine during my commute to work, but that evening it began having idle issues. I took it to a mechanic who replaced the Idle Air Con...
99 ford crown victoria | P03052001 Windstar P0303 Fault: Causes, Fixes, and Coil Pack Location Guide
I'm seeking help with a persistent P0303 fault on my 2001 Ford Windstar. Despite recently replacing the spark plugs, spark plug wires, catalytic converter (front and rear), and ...
2001 Windstar | P0303P1221, P1271, P1635 Fault Codes on 2002 Chevrolet Trailblazer - What Do They Mean?
Hello everyone, I recently replaced the fuel pump on my 2002 Chevrolet Trailblazer due to severe corrosion in the sending and return lines. Later that evening, the service light...
2002 Trailblazer | P12211995 Lincoln Continental P0133 and P0402 Codes: Are They Related?
I own a 1995 Lincoln Continental that is showing both P0133 and P0402 diagnostic trouble codes. After clearing the codes, they return shortly after. I'm wondering if these two c...
Lincoln Continental | P0133Code 1391 in my 99 Caravan
Hey i hope someone can help. I have a Caravan with 149k and i have been having issues with it. It has been running with a lack of power but smooth until a few weeks ago when it ...
99 Caravan | P13911996 Nissan Maxima P0400 Fault: Could Exhaust Leak or EGR Valve Cause It?
I own a 1996 Nissan Maxima with approximately 205,000 miles. The check engine light is illuminated, and my OBD-II scanner shows the following diagnostic trouble codes: - P0400: ...
1996 Maxima | P0400P0300 Fault in 2005 Dodge Neon SXT with California Emissions: Diagnosis and Fix
I own a 2005 Dodge Neon SXT with a 2.0L engine and California emissions compliance, currently at 40,000 miles. The issue began with a noticeable idle misfire when the vehicle is...
2005 Dodge Neon | P0300Practical 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.