Intake pressure sensor failure response – Turck

Create Date: 2024-8-30 12:03:23|Source: TURCK/TURCK

1. The internal circuit of the sensor is open or short-circuited;

2. The output signal of the sensor cannot change with the change of the vacuum degree of the inlet pipe;

3. The voltage of the output signal of the sensor is too large or too small, and its value violates the stop range.

                               Intake pressure sensor failure response – Turck

In addition, the connection between the inlet pipe pressure sensor and the computer is broken or short-circuited, the vacuum hose between the sensor and the intake pipe is blocked or leaking, and the vacuum hole of the inlet pipe is blocked, etc., will also make the output signal of the sensor abnormal.

After the above problems are presented by the pressure sensor of the intake pipe, the fuel injection function of the engine computer will be abnormal, and the mixture will be too thick or too thin, the engine idle work is not working properly or the acceleration is poor, the intake pipe is tempered during engine work or black smoke is emitted from the exhaust pipe. The main problems that will occur when the intake manifold pressure sensor itself or the wiring are defective: the engine cannot be started, the engine acceleration is not smooth, the engine idle is unstable, and the engine stalls intermittently.

The cause of the pressure sensor problem is that the vacuum leakage at the intake manifold makes the intake manifold pressure sensor unable to obtain the correct vacuum signal; Vacuum hose leakage or detachment; The intake manifold pressure sensor hose fitting is misconnected with the canister fitting.

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