The form of the output signal from the main sensors
The forms of output signals from the main sensors of the fuel system are given. These include: SMR (camshaft position sensor), TFR (crankshaft position sensor), mass air flow sensor, throttle position sensor, rear oxygen sensor, front oxygen sensor, control pulse at fast engine acceleration up to 4800 min-1 without load, warm enough engine. The picture of the output signals is a reference, the true values of the signal values, as a rule, have other values.
Mass air flow sensors (MAF) and throttle position (TPS)
When depressing the accelerator pedal, the output signal of the mass air flow sensor (MAF) should increase and, conversely, should decrease when the accelerator pedal is fully released.
Throttle position sensor signal (TPS) should increase when the accelerator pedal is depressed and decrease when it is released.
Front (FR) and rear (RR) oxygen sensors
The signals from both oxygen sensors may increase immediately after the accelerator pedal is depressed and may decrease when the pedal is released.
Injection pulse
The momentum increases when the accelerator pedal is depressed and decreases when it is released.