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.
2003 Dodge Neon SXT Won't Start After P0340 Camshaft Position Sensor Fault
I have a 2003 Dodge Neon SXT that suddenly stopped starting after the check engine light came on and a P0340 code was detected. The vehicle was taken to Advanced Auto Parts for ...
car | P0340P0001 Diagnostic Code for 1998 Mazda 626 LX: Causes and Fixes for Starting Issues
My 1998 Mazda 626 LX (6-cylinder) won't start — it cranks over but misfires and fails to ignite. Using an OBD-II code reader, I've identified a P0001 fault code: 'Fuel Volume Re...
1998 626 LX | P00012001 Hyundai Accent OBD2 Fault Codes P1403 and P1402: Diagnosis and Repair Guide
I own a 2001 Hyundai Accent and recently received OBD2 diagnostic codes P1403 and P1402. I'm looking for accurate information on what these codes mean and which replacement part...
2001 Hyundai Accent | P1402Ford F-350 2000 V10 4x4 OBDII Code P0125: Engine Coolant Temperature Issue with Cylinder Misfire Codes?
The OBDII code P0125 refers to an engine coolant temperature issue. However, I'm also receiving cylinder misfire codes. I'm wondering if it's possible for a 2000 Ford F-350 V10 ...
Ford F-350 | P01252004 Ford F-150 No Start with P0171, P0174, P0356, P2195, P2197 - Fuel or Ignition Issue?
I have a 2004 Ford F-150 'New Edge' 5.4L 3-valve V8, automatic transmission, 4x4 SuperCrew with 112,000 miles. The truck has original spark plugs and was recently serviced with ...
04 F-150 | P01712003 Dodge Stratus P0340 Code: Limp Mode in First Gear After Cam Sensor Replacement
I own a 2003 Dodge Stratus with a 2.4L DOHC engine and automatic transmission. The check engine light frequently comes on, triggering code P0340 — indicating a camshaft position...
2003 Dodge Stratus | P03402000 Subaru Forester P0440 Code: How to Diagnose and Fix EVAP System Issues
I own a 2000 Subaru Forester that consistently displays the P0440 diagnostic trouble code. I've already replaced the gas cap, but the code persists. What are the most common cau...
2000 Subaru | P04402006 Colorado P0300 and P0301 Random Misfire: What Should I Do Next?
I ran a diagnostic on my 2006 Colorado yesterday and received both the P0300 (random misfires) and P0301 (cylinder 1 misfire) codes. The truck has been exhibiting rough idle and...
06 Colorado | P03001998 S10 4.3L Engine P0302 Misfire at Idle - Fix and Diagnosis Help
I recently replaced the intake gasket on my 1998 S10 4.3L engine and now experience a misfire at idle, indicated by the P0302 diagnostic code. The issue disappears when I rev th...
1998 s10 | P03022004 Mazda MPV P0057 and P0443 Fault Codes: Causes, Symptoms, and Purge Valve Location
I own a 2004 Mazda MPV that is running roughly with a strong smell of rich fuel or unburned fuel coming from the exhaust. The engine runs smoother on highways but remains unstab...
2004 mazda MPV | P00571998 Lexus ES300 P0171 Code: Diagnosis and Solutions After Multiple Fixes
Hello everyone, this is my first post on the forum — I'm a member of Club Lexus.com and Solaraguy.com. I’m currently troubleshooting a persistent issue with my 1998 Lexus ES300,...
1998 Lexus ES300 | P01711996 Ford Taurus V6 P0402 Code: Rough Idle, Hesitation - Causes & Fixes
Hi everyone, I just brought home my 1996 Ford Taurus with a V6 engine and pulled up the diagnostic code P0402. The car is exhibiting rough idle and hesitation during driving. Af...
1996 Ford Taurus | P04022006 Chevrolet HHR P0121 and P0108 OBD2 Fault Codes: Drive-by-Wire Idle Issues
I'm experiencing drive-by-wire-related idle problems with my 2006 Chevrolet HHR. The vehicle won't hold a steady idle and only runs smoothly when the accelerator is given a smal...
06 Chev HHR | P01212001 Chevrolet Camaro 5.7L V8: OBD-II Codes P0443, P0449, P0740, and P0785 - Diagnosis & Fix Guidance
I own a 2001 Chevrolet Camaro with a 5.7L V8 engine and a 4L60E automatic transmission. The vehicle recently started displaying OBD-II diagnostic codes: P0443, P0449 (EVAP syste...
01 chev camaro v8 auto | P0443Practical 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.