What is the reason why the Baojun 510 always shows ignition in neutral?
2 Answers
Baojun 510 always shows ignition in neutral due to a transmission sensor error. Function of the transmission sensor: The vehicle speed sensor is installed near the output shaft of the automatic transmission. It is an electromagnetic induction speed sensor used to detect the speed of the automatic transmission output shaft. The computer calculates the vehicle speed based on the signal from the vehicle speed sensor, which serves as the basis for shift control. Working principle: The working principle of the transmission pressure sensor is to detect the pressure in the intake manifold behind the throttle. It detects changes in manifold pressure based on engine speed and load. During engine operation, the smaller the throttle opening, the higher the vacuum in the intake manifold, the lower the absolute pressure in the manifold, and the smaller the output signal voltage. The larger the throttle opening, the lower the vacuum in the intake pipe, the higher the absolute pressure in the manifold, and the greater the output signal pressure.
I drove the Baojun 510 for several years and encountered a similar issue where it always prompted me to start the engine in neutral. This is mainly caused by a faulty gear position sensor. The sensor detects the gear position, and if it's dirty, has poor contact, or is aging, the computer system may mistakenly assume you're not in neutral, requiring confirmation before allowing the engine to start. This issue is especially noticeable in humid weather or after car washes, as moisture can cause short circuits in the wiring. Once after rain, my car had this exact problem—the repair shop found a loose sensor connector, and tightening it fixed the issue. I recommend addressing it early because it affects smooth engine starts and could even lead to ignition failure in emergencies. Also, check if the related fuse is blown, and clean the engine bay regularly during maintenance to prevent dust buildup. The Baojun 510's economical design places the sensor near the exhaust, making it prone to heat-related issues, but repairs are simple and inexpensive—don't let it turn into a major problem.
