What are the symptoms of a faulty speed sensor in the Magotan?
3 Answers
The symptoms of a faulty speed sensor in the Magotan are: 1. Unstable engine idle; 2. Momentary stalling or engine shutdown when starting the vehicle or decelerating to a stop while driving; 3. Reduced engine acceleration performance; 4. Inaccurate speed display on the dashboard; 5. Illumination of the engine warning light. The impact of a damaged speed sensor is quite severe, so timely repair or replacement is necessary to avoid directly affecting driving safety. The Magotan is the first B-segment sedan under FAW-Volkswagen, with dimensions of 4866mm in length, 1832mm in width, and 1464mm in height, and a wheelbase of 2812mm. The vehicle is equipped with an ESP electronic stability program, which effectively prevents body skidding when avoiding obstacles at high speeds, ensuring driving safety.
When I was driving my Magotan, the symptoms became obvious as soon as the RPM sensor went bad. First, starting the car was particularly difficult—it often took multiple turns of the key to get the engine going. Once started, the engine would shake like crazy, and the tachometer needle wouldn’t budge, making it impossible to see the RPM reading. The most annoying part was when the car would suddenly stall while driving, especially at red lights in the city, with cars behind honking nonstop—it was downright embarrassing. Later, I learned that this sensor controls ignition and fuel injection. When it fails, the signal doesn’t reach the car’s computer, throwing everything into chaos. Performance takes a major hit—acceleration becomes sluggish, and climbing hills is a struggle. You can’t afford to delay fixing this issue. I immediately went to the repair shop to replace it, costing just a few hundred bucks, but waiting too long could lead to other problems. My advice: pay attention to these small details when using your car to prevent bigger issues down the road.
As an enthusiast who frequently tinkers with cars, I can immediately sense something wrong with the engine when the RPM sensor malfunctions. The startup becomes sluggish or fails outright, the tachometer displays abnormal readings with occasional wild fluctuations, and the car feels unstable while driving, as if it's drunk. I've tried inspecting the wiring harness for looseness or dirt myself, but ultimately found the sensor internally burnt out. This causes the engine control unit to receive inaccurate signals, leading to plummeting fuel efficiency and frequent jerking while driving. For diagnosis, it's best to use an OBD tool to read trouble codes, such as the common P0335 code in Volkswagen Magotans. The repair isn't overly complicated, but I'd advise against DIY attempts - it's safer to let a professional shop handle it. Regular maintenance checks on connector cleanliness can extend its lifespan.
