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.
Honda CR-V 2002 DTC P0131: Backfiring and Oxygen Sensor Reading 4.08V
Hi, I'm experiencing an issue with my 2002 Honda CR-V. When the engine is running and the vehicle comes to a stop, there is no vibration. However, when I press the accelerator p...
Honda CR-V | P0131P0302 and P0300 Fault Codes on 2006 Dodge Charger 3.5L - Diagnosis and Solutions
At 284,000 kilometers, the vehicle exhibits P0302 and P0300 diagnostic trouble codes despite having fresh spark plugs and good compression readings. Coil pack replacements have ...
06 dodge charger 3.5 | P03002003 Ford Focus 1.8L Repeated P0301 Misfire Code with No Visible Symptoms
2003 Ford Focus equipped with a 1.8L petrol engine, having accumulated over 171,000 miles. The vehicle consistently displays a 'Check Engine' light and logs fault code P0301 — i...
2003 Ford Focus 1.8L | P0301P0455 OBD2 Diagnostic for 2004 Chevrolet Blazer - EVAP System Leak
I've been experiencing the P0455 diagnostic code on my 2004 Chevrolet Blazer for approximately two years. So far, I've only replaced the gas cap, which has not resolved the issu...
Blazer | P04552004 Eclipse Check Engine Light with Codes P0106, P0108, P0421 and Low Compression in Cylinder 1?
Our daughter's 2004 Dodge Eclipse has been causing significant trouble for over a year. The check engine light first appeared more than a year ago, and despite multiple visits t...
04 Eclipse | P01061998 Chevy Blazer P0446 Code: Diagnosis and Fix Guide
I own a 1998 Chevrolet Blazer that occasionally triggers several diagnostic trouble codes. After driving it approximately 50 miles to reset the system, the code returns consiste...
98 chevrolet blazer | P04462000 Volkswagen New Beetle P1425, P1117, P1435, P1421, P1473, P0102 - Multiple Fault Codes at 135,000 Miles with Poor Engine Performance
Vehicle: 2000 Volkswagen New Beetle 1.8L Turbo (135,000 miles). Recently experienced multiple diagnostic trouble codes including P1425, P1117, P1435, P1421, P1473, and P0102. Th...
2000 New Beetle | P01022003 Chevrolet S10 P0336 & P0341 Fault: Crank & Cam Position Sensor Range/Performance Issues
I own a 2003 Chevrolet S-10 with a 2.2L engine that consistently sets diagnostic trouble codes P0336 and P0341, indicating issues with both the crankshaft and camshaft position ...
2003 Chevrolet S10 | P03362001 Chevy 1500 Z71 5.3L Engine P0420 and P0327 Codes: Causes, Diagnosis & Fixes
I own a 2001 Chevrolet 1500 Z71 with a 5.3L V8 engine and approximately 180,000 miles on the odometer. The vehicle exhibits slight smoke during initial startup. A scan tool dete...
2001 Chevy 1500 Z71 | P03272006 F150 5.4L 3L3E P0020, P0022 along with missfire
Ok so I am about done with this damn truck.......Rebuilt motor bored 075, brand new heads, cams, phasers, cam sensor, crank sensor, and vct's...fired up no problem with a rough ...
2006 F150 | P00202007 Chevrolet Aveo5 Rough Idling with P2106, P2110, P2135, and P2101 Fault Codes - Is TPS Replacement the Right Fix?
My 2007 Chevrolet Aveo5 started exhibiting rough idling today after sitting for one day. The engine runs very unevenly at idle, with a noticeable hesitation and RPM fluctuation ...
2007 Aveo5 | P21012001 Lincoln Town Car P0305 Fault - 8 Cylinder, 58,350 Miles
My 2001 Lincoln Town Car is showing a P0305 diagnostic trouble code on its 8-cylinder engine. The vehicle has accumulated 58,350 miles and the issue appears to be related to mis...
2001 Lincoln Town Car | P03052006 Mercedes-Benz C230 Fails TX Emission Inspection Due to P0171, P0173, and P2006 OBD2 Codes
I own a 2006 Mercedes-Benz C230 with 161,000 miles. Recently, I took the vehicle for a state inspection in Texas, but it failed. The mechanic reported that the vehicle did not p...
2006 Mercedes Benz C230 | P01712004 Chevrolet Impala P0305 and C0305: Misfire at Idle, Rough Acceleration, Check Engine Light Flashes Above 30 mph
The vehicle displays fault codes P0305 and C0305, indicating a cylinder misfire. The car runs roughly at idle, with intermittent smooth periods, and exhibits sluggish accelerati...
04 Chevy Impala | C03052000 Honda CRV P0301 P0303 P0304 Misfire at Idle - Multiple Cylinders Affected
I own a 2000 Honda CRV with 118,000 miles. The Check Engine Light is on and the engine is misfiring, particularly at idle. Diagnostic readings show misfires in cylinders 1, 3, a...
2000 Honda CRV | P03012000 Mitsubishi Eclipse V6 P0403 Code: Diagnosis and Solutions
My son owns a 2000 Mitsubishi Eclipse V6 3.0L engine with a detected trouble code P0403. The freeze frame data shows Fuel System 1-Drive, Calculated Load % at 72.2%, ECT (Engine...
2000 Eclipse V6 | 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.