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.
VW Golf 1.9 TDI P1563 035 - Quantity Adjuster N146 Lower Limit Stop Value Issue
Hi everyone, I'm looking for help with a fault code on my VW Golf 1.9 TDI. After scanning the vehicle, I've received the following error: - Fault Code: P1563 035 - Description:...
vw golf 1.9 tdi | P156398 Jeep Grand Cherokee V6 4.0L with P0320 and P1391: Crankshaft Sensor Failure Diagnosis
My 1998 Jeep Grand Cherokee with a 4.0L V6 engine is showing two diagnostic trouble codes: P0320 (Ignition/Distributor Engine Speed Input Circuit Malfunction) and P1391 (Camshaf...
98 JGC v6 4.0L | P0320P0703 Code on 2000 Dodge Caravan: Brake Switch or Torque Converter Issue?
Hello everyone, I'm experiencing a P0703 diagnostic trouble code on my 2000 Dodge Caravan, and I'd like to understand what's causing it. A few days ago, the brake pedal switch...
Dodge Caravan | P07032003 GMC Suburban 5.3L Flex Fuel: P0171 & P0174 Codes - Diagnosis and Fix
I recently purchased gasoline at a 'new to me' station overnight, and the next morning my check engine light came on. The OBD2 scan revealed codes P0171 (Rich Mix Bank 1) and P0...
2003 Suburban | P0171VW New Beetle P1424 Fault: Secondary Air Injection System - Bank 1
My daughter's VW New Beetle has recently started displaying the P1424 diagnostic code, triggering the Check Engine Light (CEL). Approximately a month ago, I first encountered th...
VW New Beetle | P14242000 Dodge Dakota P0442 Code: Evaporative Emission System Leak Diagnosis and Weather Patterns
Hi everyone, I'm experiencing the P0442 diagnostic trouble code on my 2000 Dodge Dakota, and I'd like to share my situation in hopes of getting some targeted advice. The issue...
2000 Dakota | P0442Honda Civic 98 OBD P1399 P0335 P0301 P0300 - Stalls at 3000 RPM, Poor Idle, Fuel Pump Failure Suspected
I own a 1998 Honda Civic 1.8L automatic model that suddenly starts jumping at 3000 RPM and fails to accelerate beyond that point. The engine barely idles, which raises concerns ...
honda civic 98 | P0300P0455 OBD2 Code on 2001 Dodge Intrepid 2.7L - Check Engine Light Reappears After Gas Cap Replacement
Hi, I own a 2001 Dodge Intrepid with a 2.7L engine and am currently experiencing a check engine light that triggers the P0455 diagnostic code. I've already replaced the gas cap ...
dodge intrepid | P04552002 Ford F-150 XLT 4.6L Idle Problems: P0171 and P0174 Diagnosis & Fix (Budget-Friendly Solutions)
My 2002 Ford F-150 XLT with a 4.6L Triton engine has developed serious idle issues about two weeks ago. The check engine light came on, and after the engine warms up, it begins ...
2002 XLT 4.6 | P0171Silverado running rich at idle
I have a 1996 Chevy Silverado PU with a 5 L V8. Recently put in a Jasper long block. Have about 5K miles on it and am having lots of issues with rough running when warm. When co...
Silverado | P01712000 Honda Prelude P0420 Code: Is It the Catalytic Converter? Symptoms and Diagnosis
My 2000 Honda Prelude is displaying a P0420 diagnostic trouble code. The vehicle emits a rattling noise during acceleration, deceleration, and even when idle—suggesting internal...
2000 Honda Prelude | P04201999 Chevy Silverado P0101, P0137, P0157, P0300 Troubleshooting - Engine Stalls & Loss of Power
Hi everyone! I'm looking for help with my 1999 Chevrolet Silverado 5.3L fuel-injected, automatic, 2-wheel-drive truck (130,000 miles). The vehicle occasionally stalls during mor...
1999 Chevy Silverado | P0101Mazda 626 2.0L - P0303 and P0172 Codes: Intermittent Rough Idle & Acceleration Hesitation
I'm experiencing both P0303 (cylinder 3 misfire) and P0172 (rich air-fuel mixture) codes on my Mazda 626 2.0L engine. Symptoms include intermittent rough idle and a growing hesi...
mazda 626 | P01721999 Dodge Durango 5.2L Engine Misfires: P0300, P0302, P0304 Codes at 150,000 Miles
The vehicle idles slightly rough but runs smoothly under normal conditions. I reset the engine codes and drove it for a full week without any issues. However, yesterday after dr...
1999 Durango | P03001997 Mercury Marquis P0430 Code: Causes, Fixes & Safety Concerns
Hi there. My CHECK ENGINE light came on Friday while driving in city traffic. The car is 64,000 miles old and otherwise runs smoothly—no performance issues despite the warning l...
97 Merc Marquis | P0430F-150 4.6L P1299 故障码：缸盖温度传感器检测到发动机过热条件
请问有人知道导致 F-150 4.6L 发动机出现 P1299 故障码的原因吗？该故障码表示‘缸盖温度传感器检测到发动机过热状况’。车辆为福特 F-150 4.6L 引擎车型，目前仪表盘提示过热警告，请问是传感器电路问题还是发动机实际过热所致？感谢解答。
97 F-150 | P1299Chevy Astro PO300 Missfire at 142k Miles - Intake Gasket Replacement Still Shows Code
I'm back with an update. After replacing the intake gasket, I discovered a crack at cylinder #1. To provide context: I've already replaced the spark plug cap, rotor, plugs, wire...
Chevy Astro | P0300Practical 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.