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.
2006 Chrysler Sebring GTC Convertible B0010 Fault: Passenger Front Airbag Deployment Control - What Component to Replace?
I own a 2006 Chrysler Sebring GTC convertible and am encountering fault code B0010, which indicates a passenger frontal stage deployment control sub-fault. I'm looking for guida...
2006 Chrysler Sebring GTC Convertible | B0010O2 Liberty 3.7L Engine: Injector Circuit Faults in Cylinders 2, 4, and 6
After an 8-month engine rebuild, a customer brings in their Jeep Liberty with a 3.7L engine exhibiting rough running and persistent fault codes for cylinders 2, 4, and 6 — all o...
Liberty 3.7 L | P21772002 Acura 3.2 TL with P0740 Code After Transmission Replacement
Hello, I own a 2002 Acura 3.2 TL. While driving, both the TCS and the check engine light came on unexpectedly. I took it to AutoZone, where they diagnosed a P0740 code. My trans...
2002 Acura 3.2 TL | P07402001 Audi S4 #6 Injector Circuit Open Misfire - Fuel Leak and Diagnostics
Hello everyone, I'm dealing with a 2001 Audi S4 that's leaking fuel from the exhaust pipe. The OBD-II code reader shows a persistent 'Injector Circuit Open' fault for cylinder #...
2001 Audi S4 | P0216P0449 Diagnostic for 2011 Cadillac SRX: How to Fix Evaporative Emission System Fault
My 2011 Cadillac SRX is displaying the P0449 diagnostic trouble code. I'm looking for a step-by-step guide to diagnose and resolve this issue related to the evaporative emission...
2011 Cadillac SRX | P0449P0172 Diagnostic for 2009 Chevrolet Impala: O2 Sensor Replacement Not Clearing Check Engine Light
I'm experiencing a persistent check engine light on my 2009 Chevrolet Impala despite replacing both oxygen (O2) sensors. After installing the first sensor, the code cleared and ...
Chevy Impala | P01721999 Mazda Protege P0421 OBD2 Code: Causes and Solutions for Catalytic Converter Efficiency Issue
My 1999 Mazda Protege ES with 127,000 miles is currently displaying only the P0421 diagnostic trouble code. I recently replaced the spark plug set and lower radiator hose, and h...
99 Mazda Protege | P04212006 Chrysler Pacifica OBD2 Code C110C - Bank 1 Fault Diagnosis
I initially thought all diagnostic codes started with 'P', but I'm now seeing a code labeled 'C110C' in my 2006 Chrysler Pacifica. After searching online, I can't find any clear...
2006 Chrysler Pacifica | P0110Ford Ranger 2002 V6 Idle Fluctuation with Multiple O2 Sensor and Emissions Codes (P1451, P0135, P0141, P0155, P1409, P1131)
My Ford Ranger 2002 V6 with 300,000 miles has suddenly developed an idle fluctuation issue, primarily occurring in the morning and sometimes when accelerating uphill. When the e...
Unknown | P01352002 Jeep Grand Cherokee P0300, P0305, P0308, and P0523 Codes: Causes and Solutions
Hi everyone, I recently purchased a 2002 Jeep Grand Cherokee Overland Edition and am experiencing several diagnostic trouble codes: P0300 (Multiple Cylinder Misfire), P0305 (Cyl...
2002 Jeep Grand Cherokee | P03002006 Chevrolet Colorado P0171 Code Not Clearing - Solutions & Diagnostics
I own a 2006 Chevrolet Colorado with a 5-cylinder engine. I've already replaced the oxygen sensor, cleaned the MAF sensor, replaced the PCV vacuum hoses, and installed new spark...
2006 chevrolet colorado | P0171GMC Envoy P0171 Code: What Does 'Fuel Trim System Lean' Mean?
I own a GMC Envoy and have recently received the diagnostic trouble code P0171, which indicates a 'Fuel Trim System Lean' condition. I'm trying to understand what this exactly m...
GMC Envoy | P01712003 Ford F150 P0125 Fault: Low Coolant Temperature Code Diagnosis
I'm experiencing severe knocking noises coming from under the hood of my 2003 Ford F150. After changing the oil, the noise reduced slightly when I let the engine idle in park. H...
Ford F150 | P01252000 Chevrolet Cavalier 2.2L P0303 Fault: Persistent Orange Spark and Starting Issues After Coil Pack Replacement
I recently encountered a P0303 diagnostic code on my 2000 Chevrolet Cavalier with a 2.2L engine. I replaced both coil packs as recommended, but the issue persists—there's still ...
2000 chevrolet cavalier | P0303P0171 Diagnostic Code for 2007 Kia Sedona 3.8L - Location of Bank 1 and Cylinder #1
I own a 2007 Kia Sedona with a 3.8L engine and have recently received the P0171 diagnostic code, indicating a lean air-fuel mixture in Bank 1. I'm trying to understand where exa...
2007 Kia Sedona | P01712000 Buick Regal P0131 and P0137 O2 Sensor Faults Causing Poor High-Speed Acceleration and Fuel Efficiency
I recently purchased a 2000 Buick Regal with the V6 3800 SII engine, which had only 74,000 miles on it over its 14-year lifespan. The initial test drive went smoothly, and the c...
2000 Regal | P0131Practical 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.