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WorksheetsPCM SENSORS
Total questions: 14
Worksheet time: 7mins
The purpose of the CMP is to identify when number one cylinder is coming up on the ________ stroke.
compression
power
intake
exhaust
If a high pressure fuel pump fails, which components supplies pressure to the injectors?
fuel tank
low pressure fuel pump
high pressure fuel pump
fuel regulator
what does the ignition switch supply power to first?
cooling fan
PCM / ECM
Electric power steering
blower motor
If an engine over temperature condition is determined by the PCM, the A/C compressor is turned on and set to maximum. True or False?
true
false
The electrical resistance of a thermistor ________ as temperature increases.
stays the same
increases
decreases
increases to the maximum
What downstream oxygen sensor voltage signal does a lean air fuel ratio produce?
< 0.4 volts
>0.60 volts
This sensor monitors and measures the temperature of the engine coolant.
IAT
ECT
MAF
IAC
The ______ is located in the cylinder head for measuring the temperature of the metal.
HO2S
ECT
CHT
IAT
A PCM/ECM input is usually an actuator or solenoid. True or false?
True
False
Which of the following is a tuned accelerometer on the engine which converts engine vibration to an electrical signal?
IAC
KS
TPS
CHT
Both the ignition and fuel control systems rely on input from this sensor....
RPM
CKP
WSS
InHg
This sensor has two main types: a stand-alone which is typically located somewhere in the air intake system, or one that is integrated into the MAP or MAF sensor. Which sensor is it?
IAT
ECT
EGR
PCV
Which tool is best used for monitoring raw sensor data waveforms?
Scan tool PIDS
Oscilloscope
DVOM
Digital Pyrometer
Heated Oxygen sensors tell the PCM how much oxygen is entering the intake system. True or False?
True
False
