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.
P0101, P0131, P0151 Trouble Codes - 2002 Chevrolet Trans Am 5.7L V8 6-Speed with Airflow Sensor Issues
I'm experiencing the following OBD-II trouble codes on my 2002 Chevrolet Trans Am 5.7L V8 6-speed model: - P0101: Mass Airflow (MAF) Sensor Range/Performance Issue - P0131: Oxy...
2002 Trans Am | P21772008 Dodge Ram 4.7L Engine Fault Codes P2096 and P2098: Diagnosis and Fixes
I'm experiencing P2096 and P2098 fault codes on my 2008 Dodge Ram 4.7L engine. I've followed every troubleshooting guide available, including those from the dealership—yet the i...
2008 RAM | P20961998 Nissan Quest 3.3L P0135 O2 Sensor Fault: Diagnosis and Fixes
I own a 1998 Nissan Quest minivan with a 3.3L engine and am currently experiencing a persistent P0135 diagnostic trouble code. I replaced both oxygen (O2) sensors, and after res...
1998 Nissan Quest Minivan | P01352011 Ford Fiesta P0068 Fault Code: Air Flow Sensor Issue Diagnosis
Fault Code: P0068 - Fuel & Air Metering System (MAP/MAF) - Throttle Position Correlation Failure Test Result Summary: - Maximum Reading: 22,737 - Minimum Reading: 6,240 - Test ...
Ford Fiesta | P0068p0087 silverado duramax
When going up grade pulling fifth wheel camper, check engine light will occassionally luminate. ODB II code is p0087. DIC shows "change fuel filter" or engine power is reduced. ...
Silverado Duramax | P0087Seat Ibiza 1.2 2002 - Fault Code P0106 and P0171: Loss of Power and Engine Stalling
Hello, I have a problem with my Seat Ibiza 1.2 from 2002. When driving, the car suddenly loses power for a few seconds, then regains normal performance when I press the acceler...
Ibiza | P01062001 VW Passat V6: Resolving P0130 and P0150 O2 Sensor Circuit Fault Codes
I initially had eight diagnostic trouble codes (DTCs), which I have since narrowed down to two primary issues: P0130 and P0150, both indicating 'O2 Sensor Circuit Malfunction'. ...
2001 VW Passat | P01302005 Ford Thunderbird 3.9L PO420 Catalyst System Efficiency Issue - Misfire Without MIL Light
I own a 2005 Ford Thunderbird 3.9L 25th Anniversary Edition, purchased new and driven over 144,000 miles. It has been a reliable vehicle until about six months ago when intermit...
2005 Ford Thunderbird | P04202006 Buick Lucerne CXS P0121 Check Engine Light: Is It a Real Issue or Misdiagnosis?
I own a 2006 Buick Lucerne CXS with 120,000 miles and a Northstar V8 4.6L engine. About two weeks ago, the check engine light came on. I took it to the dealership, where they di...
2006 Buick Lucerne CXS | P01212003 Nissan 350Z P0300 Random Misfire: TID Test Results and O2 Sensor Trim Analysis
I'm experiencing a recurring issue with my 2003 Nissan 350Z where the P0300 random misfire code appears intermittently, followed by sudden engine shutdowns. I've attached screen...
2003 Nissan 350Z | P03002011 Chevrolet Impala P0442 OBD2 Code: Causes and Troubleshooting Guide
I recently encountered a check engine light on my 2011 Chevrolet Impala, with the diagnostic code P0442. This code indicates a malfunction in the evaporative emission control sy...
Chevy Impala | P0442P2279 and P0055 Fault Codes on 2006 VW Passat 3.6 - Rough Idle and Air Noise from Intake Area
2006 Volkswagen Passat 3.6L engine experiencing rough idle when in Park or Neutral, but runs smoothly in Drive. When the hood is opened, an audible airflow is detected coming fr...
2006 VW Passat 3.6 | P00552005 Jeep Cherokee P0001 Diagnostic and Troubleshooting Guide
Vehicle: 2005 Jeep Cherokee Fault Code: P0001 Description: The P0001 diagnostic trouble code indicates a problem with the intake manifold absolute pressure (MAP) sensor. This co...
2005 Jeep Cherokee | P00012003 VW Passat Turbo Under Boost Fault - Code P0299 Diagnosis and Solutions
I own a 2003 Volkswagen Passat station wagon with a 6-cylinder 1.8T engine, currently at 94,000 miles. The check engine light has been triggered by a diagnosed under-boosted tur...
2003 VW Passat | P0299Nissan Altima 2.4 P0304 Code: Diagnosis and Troubleshooting Guide
Hello, I'm experiencing a P0304 diagnostic code on my 1997 Nissan Altima 2.4L engine. I've already replaced the spark plug wires, distributor cap, ignition rotor, ignition coil,...
nissan altima | P0304P0102 OBD2 Code in 2003 Ford Grand Marquis: Diagnosis and Solutions
Hi everyone, I own a 2003 Ford Grand Marquis, and my check engine light has come on. Using an OBD-II scanner, I've identified fault code P0102 — Mass Airflow (MAF) Sensor Circu...
2003 Grand Marquis | P0102Practical 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.