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WorksheetsEngine Management L1 - Day 1
Total questions: 10
Worksheet time: 5mins
Select all that apply. Which of the following are engine management inputs?
Engine Coolant Temperature Sensor (G62)
RPM Sensor (G28)
Turbo Recirculation Valve (N249)
Knock Sensor (G61)
What is a PTC sensor?
A variable resistor which decreases its resistance as temperature increases
A variable resistor which increases its resistance as temperature increases
Any solenoid that has a ground signal
Any sensor that uses a positive potential for signal
What is the difference between gauge pressure and absolute pressure?
Gauge uses PSI, absolute uses BAR
Absolute is more accurate by using millionths
They use different zero points
Gauge measures much higher ranges than absolute
If a static fuel pressure test is within specification, there cannot be a restriction causing low fuel delivery volume.
True
False
How does the fuel pump control module (J538) control the fuel transfer pump (G6)?
An analog signal
Pulse Width Modulation
A variable frequency sine wave
Square waves that change amplitude
What important basic check should be performed prior to other fuel system tests?
A fuel buoyancy test
A compression test
An injector leak test
A fuel quality test
What is a digital signal?
Any signal that has 256 states (0-255)
Any signal that instantly rises and instantly falls between its voltage states.
All electrical sensor signals
All position sensors
Select all that apply. Which of the following are engine management outputs?
Camshaft Actuator (N205)
Wastegate Bypass Regulator Valve (N75)
Charge Air Pressure Sensor (G31)
Fuel Transfer Pump (G6)
Which test may damage a contactless potentiometer?
Any DVOM measurement
Inductive current measurements
Resistance measurements
Viewing Measured Value Blocks
When using the DSO in ODIS, Auto is used for ______ signals, and Writer is used for ______ signals.
slow, fast
digital, digilog
analog, voltage
fast, slow
