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 Ford F150 4.6L V8 P0506 Fix: Idle Control System RPM Lower Than Expected
I'm experiencing error code P0506 - Idle Control System RPM Lower Than Expected on my 2004 Ford F15-0 with a 4.6L V8 engine. After replacing the alternator and battery two days ...
2004 F150 4.6L V8 | P05062001 BMW X5 3.0L - P0035 Error Code: Turbocharger Bypass Valve Control Circuit High
2001 BMW X5 3.0L, Mileage: 125,000 miles The check engine light is illuminated and the diagnostic trouble code 'P0035 - Turbocharger Bypass Valve Control Circuit High' has been ...
2001 BMW X5 | P0035Mitsubishi Montero Sport LS 3.0: P0136 and P0141 Error Codes Explained - Location and Meaning of Pending Codes
I own a Mitsubishi Montero Sport LS 3.0 and am currently experiencing two OBD2 error codes: P0136 (Bank 1, Sensor 2) and P0141 (Bank 1, Sensor 2). The scan tool shows both codes...
Mitsubishi Montero Sport LS | P0136How to Fix P0401 and P0402 Fault Codes on a 1999 Toyota Solara (98,000 Miles)
I need help diagnosing and fixing fault codes P0401 and P0402 on my 1999 Toyota Solara with 98,000 miles. These codes indicate insufficient and excessive exhaust gas flow, respe...
Toyota Solara | P04012000 Subaru Impreza Outback 2.2L P0420 Fault Code: Cat Converter Issue Diagnosis
Oxygen sensor resistance tests are generally considered unreliable, especially when diagnosing a P0420 code. However, if the sensors pass resistance checks and the fault is spec...
2000 Subaru Impreza Outback | P04202001 Dodge Grand Caravan 3.3L P1388 Code: Auto Shutdown Relay Circuit Failure and Transmission Limp Mode Diagnosis
My 2001 Dodge Grand Caravan with a 3.3L engine has recently developed a transmission issue where it enters default mode, only allowing 2nd gear and reverse. After taking it to a...
2001 Dodge Grand Caravan | P13382001 Chevrolet Impala 3.8L: P0341 Fixed, But O2 Heater & Evap Monitors Still Not Ready for Smog Test
I own a 2001 Chevrolet Impala with a 3.8L engine and approximately 130,000 miles. I'm preparing the vehicle for an annual smog test and have encountered an issue: despite replac...
01 Impala | P2177P0340 Fault in 1996 Toyota Camry 2.2L 4-Cylinder: Diagnosis and Repair Guide
My 1996 Toyota Camry 2.2L 4-cylinder engine has been running poorly, especially at low RPMs, and suddenly stopped starting yesterday. It previously struggled to maintain speeds ...
1996 Toyota Camry 2.2L 4cyl | P0340BMW 530d P1260 故障码：发动机无法超过4000rpm，最高时速仅达100mph
您好，各位朋友帮忙看看这个故障代码。我的宝马530d车型在行驶过程中无法将转速提升至4000rpm以上，且难以达到100英里/小时的最高速度。车辆在加速时表现明显滞后，疑似与P1260故障码有关。请问这是否是发动机管理系统或涡轮增压相关的问题？是否有车主遇到类似情况并成功解决过？谢谢大家的帮助。
BMW 530d | P1260Audi A4 P1565 Error Code: How to Fix Lower Speed Idler Not Attained Issue
I'm experiencing Audi A4 P1565 error code, which indicates that the lower speed idler mechanism is not being properly attained. This fault typically relates to issues in the tra...
audi a4 | P1565P0401 and P0402 EGR Flow Errors on 2002 Ford F-150 - Fix for Insufficient and Excessive Flow
I own a 2002 Ford F-150 with 54,000 miles. I recently replaced the EGR valve, but the vehicle is still showing two diagnostic trouble codes: P0401 (Insufficient EGR Flow) and P0...
EGR | P04012002 Isuzu Rodeo Sport P0135 O2 Sensor Heater Circuit Malfunction: Diagnosis and Fix Guide
I recently encountered a persistent P0135 fault code on my wife's 2002 Isuzu Rodeo Sport (V6 3.2L). I replaced the Bank 1 Sensor 1 oxygen sensor (B1S1) located on the driver's s...
2002 Isuzu Rodeo Sport | P2177Ford P0102 Fault: How to Fix MAF Sensor Circuit Low Voltage Issue
Fault Code P0102 on Ford Vehicles This diagnostic trouble code (DTC) falls under the Powertrain system, specifically in the Fuel and Air Metering category as per ISO/SAE standa...
ford | P0102P0402 Excessive EGR Flow Diagnosis and Fix for 1996 Toyota 4Runner 2.7L 4-Cylinder
Just had my 1996 Toyota 4Runner 2.7L 4-cylinder diagnosed at the dealership. They were professional and did not charge me to reset the P0402 code (Excessive EGR Flow). They ment...
1996 Toyota 4Runner 2.7 4 Cyl | P04022001 Toyota Camry P1135 O2 Sensor Fault: Diagnosis and Correct Part Replacement Guide
I own a 2001 Toyota Camry with a 4-cylinder engine. Recently, the check engine light activated, and an OBD-II diagnostic revealed code P1135 — indicating a problem with the air/...
2001 Toyota Camry | P11352002 Chevrolet Tracker P0455 Code: Causes, Diagnosis, and How to Fix Idle Issues
My 2002 Chevrolet Tracker is showing a P0455 diagnostic trouble code. I've already checked the gas cap, but the code persists even after clearing it from the OBD2 system. Additi...
02 chevy tracker | P04552007 Mazda 5 P0148 Code: Causes and Troubleshooting Guide
Hi everyone, I'm new to this forum and recently purchased a 2007 Mazda 5 used. I'm currently seeing a P0148 diagnostic trouble code, which my auto parts store identified as indi...
2007 mazda 5 | P01482005 Nissan Maxima P0780 Fault: Shift Malfunction and Motor Mount Wear
I've been experiencing a shift malfunction between 2nd and 3rd gear in my 2005 Nissan Maxima for several months. The issue started gradually, with the transmission shifting roug...
2005 Nissan Maxima | P0780Practical 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.