
The symptoms of a damaged intake pressure sensor include: 1. Malfunction of the engine computer's fuel injection function; 2. Abnormal engine operation or poor acceleration; 3. Black smoke from the exhaust pipe during engine operation; 4. Engine failure to start; 5. Poor engine acceleration; 6. Intermittent engine stalling. A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to a certain pattern. Pressure sensors are categorized into: 1. Piezoresistive pressure sensors; 2. Ceramic pressure sensors; 3. Diffused silicon pressure sensors; 4. Sapphire pressure sensors; 5. Piezoelectric pressure sensors.

I've been driving for decades and have encountered situations where the intake pressure sensor was damaged. Starting the engine was particularly difficult, sometimes it wouldn't start at all. At idle, the car shook violently, like sitting on a vibrating seat. Pressing the accelerator had no response, climbing a small hill felt strenuous, and the power output was significantly weaker. Fuel consumption noticeably increased, and after a few days, I spent more on gas. The check engine light on the dashboard stayed on constantly. Later, I went to the repair shop, and an OBD2 scanner showed the P0106 fault code. After the repair, everything returned to normal. I recommend not delaying repairs to avoid bigger issues. This sensor is located near the engine manifold, and it's prone to damage from carbon buildup, so regular maintenance helps. In short, these problems are quite annoying, and dealing with them early saves both hassle and money.

The intake pressure sensor is responsible for measuring the air pressure entering the engine, assisting the computer in regulating fuel injection. When it fails, typical symptoms include unstable idling, with the engine surging up and down like hiccups, and it may even stall suddenly. Acceleration becomes sluggish, as if stepping on cotton with no power response. Fuel consumption skyrockets due to uncontrolled fuel injection, wasting a significant amount of money. The check engine light turning on is a common warning, and an OBD tool can read the fault code to confirm the issue. During diagnosis, unplugging the sensor connector to observe changes in engine behavior is a first step. Daily prevention involves keeping the engine clean to avoid sensor contamination. Repair or replacement costs are relatively low, but prolonged neglect may affect the emission system, leading to fines—more loss than gain.

Last month, the intake pressure sensor in my car failed, with very obvious symptoms. The fuel consumption was much higher than usual, and the low fuel warning light came on shortly after filling up. When idling at red lights, the engine kept shaking and almost stalled several times. There was no noticeable response when pressing the accelerator, making it difficult to overtake. The check engine light on the dashboard was on, and the mechanic confirmed it was caused by this issue. After replacement, the car ran much smoother immediately. Pay attention to these small issues to avoid breakdowns that could disrupt your trip.


