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 Ford Expedition P0430 Fault Code: What Part Do I Need to Replace?
I'm experiencing a P0430 diagnostic trouble code on my 2006 Ford Expedition. The code indicates that the oxygen sensor is detecting abnormal exhaust emissions, specifically rela...
2006 Expedition | P04302007 Chevy Equinox P0711 and P0700 Error Codes: Transmission Shifting Issues and Diagnosis
I'm experiencing intermittent rough shifting in my 2007 Chevrolet Equinox, especially during acceleration. The vehicle rocks back and forth when I accelerate, but this doesn't h...
2007 Chevy Equinox | P07002002 Ford Taurus P0135, P0141, P0155, P0161, and P1409 OBD2 Codes - How to Diagnose and Fix All Four Oxygen Sensor Heater Circuits
I recently received a 2002 Ford Taurus for my son, but it fails inspection due to multiple OBD2 trouble codes: P0135, P0141, P0155, P0161, and P1409. I've tested the heater resi...
Ford Taurus | P01352005 Ford Expedition 5.4L with P0303, P0304, P0172, P0174: Causes and Troubleshooting Guide
I own a 2005 Ford Eddie Bauer Expedition with a 5.4L V8 engine. Recently, the vehicle began exhibiting symptoms including rough acceleration, idle shaking, intermittent stalling...
2005 Expedition 5.4 L | P0172Audi A4 B7 2006 - P0300 Fault: Smooth Drive Below 2000 RPM, Roughness and Choking Above 2000 RPM
I own an Audi A4 B7 from 2006 and am experiencing a P0300 fault. The vehicle runs smoothly below 2000 RPM, but once it reaches this speed, the drive becomes slightly rough and t...
Audi A4 B7 | P03002004 Jeep Wrangler Rubicon P0155 O2 Sensor Issue: Code Returns After Replacement
I'm experiencing a recurring check engine light on my 2004 Jeep Wrangler Rubicon. I visited two local auto shops that offered free OBD2 scan tests, both identified the same faul...
2004 Jeep Wrangler Rubicon | P01552000 Honda Civic LX Repeated P1399 and P0304 Codes - Diagnosis and Solutions
I own a 2000 Honda Civic LX and am experiencing recurring fault codes P1399 and P0304. I've already replaced the spark plugs, ignition coil, rotor, cap, wires, and performed val...
2000 Honda Civic | P03042007 Dodge Ram 1500 5.7L Engine P0153 Fault: Right Bank Fuel Trim Issue After Adaptive Reset
I'm experiencing a persistent P0153 fault on my 2007 Dodge Ram 1500 with the 5.7L engine. After performing an adaptive reset, the right bank begins to add fuel over time—somethi...
2007 dodge ram 1500 | P01531998 Ford Ranger P0174, P0306, and P0401 Codes - Solutions for 154,000-Mile Vehicle
I recently worked on my 1998 Ford Ranger with 154,000 miles. I've replaced the vacuum hoses and air filter, but the vehicle still shows persistent diagnostic trouble codes: P017...
98 Ranger | P01742005 Ford Escape V6 Diagnostic Code 07E8 - MAP Sensor Circuit Range/Performance Issue
I'm encountering diagnostic code 07E8 (Manifold Absolute Pressure/Barometric Pressure circuit range/performance) on my 2005 Ford Escape with a V6 engine. I've already replaced t...
2005 Ford Escape V6 | P0017How to Fix P0174, P0452, and P0449 Codes on 2003 Hyundai Tiburon GT with 2.7L Engine
I own a 2003 Hyundai Tiburon GT equipped with a 2.7-liter engine and am currently experiencing multiple engine diagnostic trouble codes: P0174 (System Too Lean Bank 2), P0452 (E...
03 Tiburon GT | P0174Nissan Altima 4-Cylinder P0507 Fault Code: Idle Speed Too High
My Nissan Altima with a 4-cylinder engine is throwing diagnostic trouble code P0507, indicating an idle speed that is too high. This issue may be related to the idle air control...
Nissan Altima | P05071998 Dodge Stratus P0340 Code: What Does It Mean and Should You Replace the Camshaft Position Sensor?
Last night, while driving, my check engine light unexpectedly came on. The engine runs normally, and there are no issues with starting. This morning, I scanned the system and fo...
1998 Dodge Stratus | P0340P0304 Misfire Diagnosis and Fix for 2009 GMC Acadia SLT 3.6 - Intermittent Cylinder 4 Issue
I own a 2009 GMC Acadia SLT 3.6 with a persistent P0304 misfire code on cylinder #4. The issue is intermittent—sometimes no symptoms for weeks, then suddenly the engine starts m...
2009 GMC Acadia SLT | P03041996 Chevrolet Caprice P0125 Code: Engine Coolant Temperature Sensor Issue Causes Stalling After Driving
My 1996 Chevrolet Caprice starts fine initially, but after driving for 5 to 10 minutes, it begins to run roughly and then stalls. The car will not restart immediately—after abou...
1996 chevrolet Caprice | P0125P0300 Fault Code After Head Gasket Replacement on 1998 Chevy Silverado 1500 4x4
After replacing head gaskets on my 1998 Chevrolet Silverado 1500 4x4, I'm now experiencing a persistent P0300 fault code. The engine idles roughly and only reaches about 500 RPM...
1998 Chevy with 5.7 | P03002004 Chevrolet Tahoe 4.8L 发现 P0449 故障码：EVAP 通风阀控制电路故障
P0449 故障码在 2004 年款 Chevrolet Tahoe 4.8L 车型中常见，表示 EVAP 系统通风阀控制电路出现异常。该故障码的定义是：当驾驶员指令车辆进入关闭状态时，发动机控制模块（ECM）检测到 EVAP 通风阀控制电路电压在 2.6 至 4.6 伏之间持续超过 4 秒。 可能原因包括： - 电路开路或短路 - 电气连接不良 -...
2004 Chevrolet Tahoe | P0449P0300 Fault on 2003 Chevrolet S-10 4.3L Engine - Misfire Only at Operating Temperature
Hello everyone, I'm seeking urgent help with a recurring P0300 misfire code on my 2003 Chevrolet S-10 4.3L V6 engine. The issue began about a month ago. Previously, around six ...
93 Chevy S-10 4.3 | P03002001 Chevrolet Blazer DTC P0410 P0135 P0155: How to Clear OBD-II Codes and Pass Inspection
My 2001 Chevrolet Blazer has persistent OBD-II diagnostic trouble codes: P0410, P0135, and P0155. I initially suspected a faulty A.I.R. pump, which was replaced along with the f...
2001 Chevrolet Blazer | P0135Practical 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.