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.
2004 Kia Optima P0466 Fault: Misfire and Check Engine Light at 70,000 Miles
I own a 2004 Kia Optima with a 4-cylinder engine and currently have around 70,000 miles on it. The vehicle occasionally misfires or stalls when driving slowly, triggering the Ch...
2004 Kia | P04662000 GMC Jimmy P0452 Fuel Tank Pressure Sensor Issue - Fix for Novice Mechanics
A week ago, my 2000 GMC Jimmy (4.3L engine, 150,751 miles) started showing a SES light. The diagnostic scan revealed fault code P0452 — Fuel Tank Pressure Sensor/switch low. I r...
2000 GMC Jimmy | P04522006 Ford Eddie Bauer Explorer P2272 O2 Sensor Code: Causes and Solutions
The check engine light has come on in my 2006 Ford Eddie Bauer Explorer, and an OBD2 scan revealed fault code P2272, which relates to the oxygen (O2) sensor. This issue first ap...
2006 Ford Eddie Bauer Explorer | P22722096 Cadillac Eldorado 4.6L Engine P1111 Fault Code: How to Diagnose and Fix IAT Sensor Issue
I own a 1996 Cadillac Eldorado with a 4.6L engine, and I'm encountering the P1111 diagnostic trouble code. What does this mean, and how can I resolve it? The P1111 code typicall...
Cadillac | P1111PO446 Fault Code on 2001 Chevy Venture LS: Can Gas in Charcoal Canister Trigger It?
I own a 2001 Chevrolet Venture LS and am experiencing a PO446 diagnostic trouble code. My question is whether having gasoline in the charcoal canister could trigger this code. I...
Chevy Venture | P04462004 Kia Optima P0446 Fault: Engine Stalls After Restart, Occurs 2-3 Times Per Week
My 2004 Kia Optima is throwing diagnostic code P0446, associated with a 4-cylinder engine. The vehicle cuts out or stalls unexpectedly and restarts instantly. This issue occurs ...
2004 Kia Optima | P0446P0171 Fault Code on 1998 Nissan Altima: Diagnosis Tips and Common Fixes
I'm experiencing the P0171 diagnostic trouble code on my 1998 Nissan Altima. I've already checked for intake leaks using BrakeKleen, and no visible leaks were found. The O2 sens...
1998 Nissan Altima | P0171How to Read Honda 1998 Accord PGM Test Connection Voltage with a Reliable Scanner (Fault Code 1456)
I'm looking for advice on how to read the fault code 1456 from my 1998 Honda Accord using a scanner that can accurately monitor voltages from the PGM test connection. I need a r...
98 Accord | P1456Dakota P0138 Code: Identifying the Sensor and Fixing Random Stalling and Backfiring
I'm experiencing a P0138 OBD2 diagnostic code on my Dakota. I want to know exactly which sensor is affected and whether this code is actually causing the issues I'm seeing. My t...
dakota | P01382008 PT Cruiser P0340 Misfire: Battery, Cam Sensor & OBD-II Code Diagnosis
My wife's 2008 PT Cruiser with a 2.4L naturally aspirated engine started exhibiting hesitation and bucking about two weeks ago. The vehicle did not stall, but the check engine l...
PT Cruiser | P0340P420 and P1456 Error Codes - 2002 Honda CR-V (204,500 Miles) | OBD2 Diagnosis & Solutions
My 2002 Honda CR-V has returned with P420 and P1456 error codes at 204,500 miles. The vehicle previously had its catalytic converter and downstream oxygen sensor replaced 18 mon...
2002 Honda CR-V | P14562011 Ford Fiesta SE Check Engine Light: OBD Code ER0412 Explained - Safe to Drive?
Hi everyone, My 2011 Ford Fiesta SE has triggered the check engine light, and I've managed to access the OBD-II diagnostic menu. The system displays 'ER0412', which I understan...
2011 Ford Fiesta SE | P04122000 GMC Sierra Running Poorly with No Spark on Driver's Side Coils and Fault Codes P0131, P0140, P0160, P0200, P0300
My 2000 GMC Sierra began running extremely poorly suddenly—experiencing severe sputtering and a complete loss of power. A mechanic I know inspected it and initially suspected fa...
truck | P0301P0605 Code Reappears After New ECM Installation - 2004 Nissan Sentra 1.8L
I'm experiencing a persistent P0605 code on my 2004 Nissan Sentra 1.8L, and despite replacing the ECM, the issue continues. The check engine light activates, and the vehicle ent...
Nissan Sentra | P06052004 Monte Carlo Supercharged - P0300, B3128, B3138, O2 Sensor Issues & No Catalytic Converter
I recently purchased a 2004 Monte Carlo Supercharged from a friend who no longer has time for it. The car is experiencing severe performance issues: it boggs down significantly ...
2004 Monte Carlo Super Charged | B31282009 Ford Mondeo Mk4 2.0 Tdci - Engine Dies Suddenly with P0336 Fault Code
Hi everyone, I'm experiencing a serious issue with my 2009 Ford Mondeo Mk4 2.0 Tdci. The engine suddenly dies while driving, often without any warning. After letting the car res...
2009 Ford Mondeo Mk4 2.0 Tdci | P03362006 Chevy Aveo P0451 Code: Evaporative Emission System Pressure Sensor Issue - Cost and Repair Guide
What does the P0451 diagnostic code mean for my 2006 Chevy Aveo? Is this a costly repair or something manageable? I'm looking for clarity on potential causes and expected fix co...
2006 Chevy Aveo | P0451Practical 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.