How to measure Buick Excelle sensor?

Buick Excelle sensor needs a multimeter to measure the wiring harness, and the data values of different sensors are different. There are different sensors in the car. Different sensors have different functions and different installation positions. There is no time limit for sensors. If it is damaged, it needs to be replaced in time, otherwise it will affect the driving safety of the vehicle. The types and functions of sensors are as follows: 1.

How to measure Buick Excelle sensor?

Buick Excelle sensor needs a multimeter to measure the wiring harness, and the data values of different sensors are different. There are different sensors in the car. Different sensors have different functions and different installation positions. There is no time limit for sensors. If it is damaged, it needs to be replaced in time, otherwise it will affect the driving safety of the vehicle. The types and functions of sensors are as follows:

1. Intake pressure sensor: it reflects the change of absolute pressure of intake manifold and provides reference signal for ecu (Engine Electronic Control Unit) to calculate fuel injection duration;

2. Throttle position sensor: measures the throttle opening and provides it to ecu as a reference signal for fuel cut-off, air-fuel ratio control and ignition advance angle correction;

3. Air temperature sensor: detects the intake air temperature and provides it to ecu to calculate the air density; Coolant temperature sensor: detects the temperature of coolant and provides engine temperature information to ecu;

4. Crankshaft position sensor: detects the rotating speed of crankshaft and engine, and provides it to ecu as reference signal to determine ignition timing and working sequence;

5. Oxygen sensor: detect the oxygen concentration in the exhaust gas and provide it to ecu as a reference signal to control the air-fuel ratio near the optimal value (theoretical value); Knock sensor: installed on the cylinder block to detect engine knock and provide it to ecu to adjust the ignition advance angle according to the signal.

How to assemble and disassemble Buick Excelle sensor?

Buick Excelle sensor should be disassembled according to the relevant maintenance manual. There are different sensors in the car. Different sensors have different functions and different installation positions. There is no time limit for sensors. If it is damaged, it needs to be replaced in time, otherwise it will affect the driving safety of the vehicle. The types and functions of sensors are as follows:

1. Intake pressure sensor: it reflects the change of absolute pressure of intake manifold and provides reference signal for ecu (Engine Electronic Control Unit) to calculate fuel injection duration;

2. Throttle position sensor: measures the throttle opening and provides it to ecu as a reference signal for fuel cut-off, air-fuel ratio control and ignition advance angle correction;

3. Air temperature sensor: detects the intake air temperature and provides it to ecu to calculate the air density; Coolant temperature sensor: detects the temperature of coolant and provides engine temperature information to ecu;

4. Crankshaft position sensor: detects the rotating speed of crankshaft and engine, and provides it to ecu as reference signal to determine ignition timing and working sequence;

5. Oxygen sensor: detect the oxygen concentration in the exhaust gas and provide it to ecu as a reference signal to control the air-fuel ratio near the optimal value (theoretical value); Knock sensor: installed on the cylinder block to detect engine knock and provide it to ecu to adjust the ignition advance angle according to the signal. How to Measure Buick Excelle Sensor How to Disassemble Buick Excelle Sensor @20 19