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.
1999 Mercedes E250 with P0171 and P0174 - No Vacuum Leaks Found, LTFT Shows 16% on Both Banks
I have a 1999 Mercedes-Benz E250 displaying fault codes P0171 and P0174. I've thoroughly checked for vacuum leaks and found none. During idle and acceleration, my Long-Term Fuel...
99 e250 | P01712007 Mercedes E350 P0411 故障码如何修复？
如何解决2007款Mercedes E350车辆出现的P0411排放故障码？P0411表示柴油颗粒过滤器（DPF）后氧传感器信号异常，通常与催化转化器或排气系统堵塞有关。建议首先使用OBD2扫描仪确认故障码，并检查排气系统是否有泄漏、积碳或堵塞现象。若问题持续，请联系专业维修人员进行催化转换器检测和清洁工作。
2007 mercedes e350 | P04112007 Chevy Trailblazer V6: Fix P1400 and P0506 Codes with Anti-Skid Light On
My 2007 Chevrolet Trailblazer V6 engine light and anti-skid light are both flashing intermittently. I've pulled diagnostic codes P1400 and P0506, but I'm not sure what they mean...
2007 Chevy Trailblazer V6 | P0506P0303 Misfire Diagnosis and Repair: 2003 Mazda 626 4-Cylinder Solutions
2003 Mazda 626, 4-cylinder engine. I'm still encountering a P0303 diagnostic trouble code after replacing spark plugs and wires, vacuum hoses, PCV system, intake manifold, and c...
2003 Mazda 626 | P0303Nissan Almera 2005 1.5L P1610 Fault: How to Diagnose and Fix Nissan Anti-Theft System Issue
My Nissan Almera 2005 1.5L is not starting, and the OBD2 scan tool shows a P1610 diagnostic code. This code indicates a problem with the Nissan Anti-Theft System (NATS). The P16...
Nissan Almera | P1610P0700 and P0872 Fault Codes on 2004 GMC Duramax with Allison Transmission - Diagnosis and Solutions
I'm experiencing trouble codes P0700 and P08702 on my 2004 GMC Duramax diesel truck equipped with an Allison transmission. The issue started recently, and I'm looking for guidan...
04 GMC Duramax | P07002000 Town and Country p0118
Hello I've got a 2000 town and country with a 3.3 I had a code p0118 so i changed the temp sensor and I still have the code. I have a auto exray scan tool and it wont reset the ...
2000 Town and Country | P0118P0170 1997 Montero - frustrated
My 1997 Mitsubishi Montero has been throwing a P0170 code for the past 2 years and after several trips my local mechanic and the dealership it's still not fixed. Some 2 years a...
1997 Montero | P01702000 Ford F-150 V8 P1151 Code: Misfire After EGR Replacement and Fuel Additive Use
Hello, The check engine light came on in my 2000 Ford F-15
F-150 V8 | P04302004 Nissan Maxima P0022 Fault Code: How to Diagnose and Fix Timing Issues
I'm experiencing a P0022 engine fault code on my 2004 Nissan Maxima. The code indicates an issue with the intake camshaft position sensor or timing chain, so I've been checking ...
2004 Maxima | P00222015 F150 V8 Oxygen Sensor Codes P0136, P0156, P1131, P1151 - Lean Mix & Stalling at Idle
While driving to work one morning, my F150 V8 truck exhibited a rough idle and misfired, as if it had a fuel delivery issue. After arriving at work, I connected a OBD2 scanner a...
F150 V8 | P01362002 Ford Expedition 5.4L Engine P1000 Code: OBD Readiness Test Not Complete
The P1000 diagnostic trouble code (DTC) on a 2002 Ford Expedition with a 5.4L engine indicates that the OBD systems readiness test has not been completed. This is typically an i...
2002 ford expedition | P10002002 Ford Ranger 2.3L Engine P1537 Intake Manifold Runner Control Stuck Open - Diagnosis and Fix
I'm experiencing a P1537 diagnostic trouble code on my 2002 Ford Ranger 2.3L, indicating an intake manifold runner control (IMRC) stuck open issue. What are the most effective s...
2002 Ford Ranger | P15372000 Chevrolet S10 P0171 & P0172: Rich and Lean Codes Explained - Fuel, MAF, or Sensor Issues?
2000 Chevrolet S10 LS Extended Cab Pickup, 3-Door, 2.2L 2190CC Naturally Aspirated Engine (134 cu.in., Flex OHV). Currently at 121,000 miles. The vehicle has started exhibiting...
2000 chevrolet s10 | P01711998 Chevrolet Camaro 3.8L: P0404, P0505, P1406, P0304, P0122, P0125 Fault Codes - Should I Replace the Engine?
I recently ran diagnostics on my 1998 Chevrolet Camaro 3.8L with 200,000 miles and found several fault codes: P0404 (Exhaust Gas Recirculation System Flow Malfunction), P0505 (I...
camaro | P01222004 Saturn Vue 3.5L V6 Engine Fault Code P1621: Symptoms and Causes
I recently encountered a fault code P1621 on my 2004 Saturn Vue with the 3.5L V6 engine. The vehicle suddenly lost all power while driving on the freeway, and the TCS (Traction ...
2004 Saturn VUE | P16212004 Cadillac CTS Fault Code B0242: Is This an ABS or HVAC Issue?
Does the 2004 Cadillac CTS have an ABS fault code for B0242? My OBD2 scanner detects this code, but I can't locate it in the official code reference. Based on my research, ABS c...
2004 cadillac cts | B0242Practical 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.