WS3B Oscillscope Patterns to Capture

Toyota
Signal MAp Canalogue Votlages
Volts 13v
Time 5m/s



this is a MAP of the output sensors is showing a rise and fall voltage depending on the vacuum seen. the throttle is wide open and it goes zero vacuum will be record and a voltage 5 volts will be seen from the A to B.so the waveflow is showing that i have rev to half way and that how it showing of the MAP output.but not all the car MAP sensor has 5v though. it would affect the voltage will  and produce a loss of power due to fuel. If the MAP or injectors loose it and the car does not idle smoothly and maybe troubles with the temperature.


Toyota
Signal RPM distributor
Volts 0.59v
Time 5m/s


This a pic of testing the RPM of the hall distriubor.  The trigger has a rotating metal part disc with opening this passes between the electrial magnet and the semiconductor. but all the sqaure are not the same bit it look very simlar but it differnt to each squares. so it showing the hieght voltages. when  voltage from the Hall effect trigger and make the changes of the squares shape.


Toyota
Siginal Oxgyen sensor
Volts 0.9v
Time 5m/s


When the ECU receives a rich signal high voltage from the O2 sensor. it leans the fuel mixture to reduce like get smaller and the sensor's feedback voltage. When the O2 sensor reading goes lean, the ECU reverses again making the fuel mixture go rich. before it will start to generate a voltage signal. so many oxygen sensors have a small heating thing inside to help them make it operating temperature more quickly. the 02 sensor is effect when the the pistion pushing out the burn exhuast and go to the outlet of valve and to the the 02 sensor then to the exhast.


Toyota
Siginal Ingition against injectors
Volts 0.9v
Time 5m/s

this a pic of the pimary against the injectors  A is ingitons and B is injector, but thereis no current in the coils primary's circuit until the dwell period. if the distubtor nt working well it wil happen like this When a coil failure occurs on a distributor ignition system, it affects all the cylinders and rough idle. Sometime igiton can be faulty with the voltage may drop causing ignition misfire when the engine is under load