How to Solve the Illuminated Engine Fault Light in Wuling Hongguang Vehicles?
3 Answers
Wuling Hongguang's illuminated engine fault light indicates an electronic control system malfunction in the engine. It requires a repair shop to use a decoder to read the fault code and then proceed with repairs. The illuminated engine fault light is an issue that car owners cannot afford to ignore, as it directly relates to engine lifespan and driving safety. Parameters for the Wuling Hongguang 2021 1.5L S Basic LAR Model: Its dimensions are 4420mm in length, 1685mm in width, and 1755mm in height, with a wheelbase of 2720mm. It is equipped with an LAR engine paired with a 6-speed manual transmission, achieving a top speed of 155 km/h. The engine's maximum torque is 140 Nm, with the maximum torque speed ranging from 3400 to 4400 rpm. Reasons for the Illuminated Engine Fault Light: Poor or substandard gasoline quality. This leads to incomplete combustion of the air-fuel mixture during engine operation, causing the engine fault light to illuminate. Oxygen sensor malfunction: If the oxygen sensor is damaged or the sensor connector is damaged or loose, it can cause the air-fuel mixture to be too lean or too rich, triggering the fault light. In reality, the oxygen sensor is a highly durable component and can last 3 years or longer with proper fuel quality. Therefore, if the fault light illuminates in a new car, it's advisable to check if the oxygen sensor connector is loose. Air flow sensor malfunction: If the air flow sensor or its wiring fails, the ECU will not receive the correct intake air volume signal, leading to improper fuel control. This results in a mixture that is too lean or too rich, preventing the engine from operating normally. Spark plug carbon buildup: Carbon buildup on spark plugs can cause poor engine performance, manifesting as difficulties in starting, unstable idling, poor acceleration, backfiring during rapid acceleration, excessive exhaust emissions, and increased fuel consumption.
As a Wuling Hongguang owner with five years of experience, I've encountered the engine warning light coming on several times. Common causes include dirty fuel or using low-quality gasoline that triggers false sensor alerts, or the oxygen sensor being covered with carbon deposits. My first step is to check the vehicle's condition—see if the throttle response is sluggish or if fuel consumption has suddenly spiked unreasonably. Then, I plug an OBD scanner into the port to read the fault codes, which can be done with a free app from the app store, costing almost nothing. Based on the code, I decide the next steps: if it indicates an oxygen sensor issue, I try spraying it with cleaner; if the light stays on and is accompanied by engine shaking, I immediately drive to a nearby repair shop for a full inspection. Don’t delay—if internal engine wear worsens, repairs will cost much more. The Wuling Hongguang is sturdy but simple; with good maintenance, it can last much longer.
I often help people with car repairs. When the check engine light comes on in a Wuling Hongguang, it's mostly due to minor issues in the emission system, such as a clogged catalytic converter or a malfunctioning mass airflow sensor. My advice is to first park the car safely and avoid driving further to prevent safety hazards. Use a simple OBD tool to connect to the diagnostic port and read the trouble codes to identify the problem before taking action: if the code points to a fuel system issue, check for loose connections in the fuel filter and fuel pump; if it's an electrical issue, gently tap the related connectors to see if there's poor contact. Doing some basic troubleshooting yourself can save time, but if the light stays on for an extended period, it's best to consult a professional mechanic for a thorough computer scan. They're skilled at handling minor flaws in budget-friendly models like the Wuling Hongguang, and it's worth spending a little to fix the problem. Although the Wuling Hongguang is durable, ignoring faults could lead to costly engine overhauls.
