When some sensor fails ECM switches into alternative sensor signal which keeps engine running with reduced performance, what is this mode called?
Nissan Engine Management System - Post Test

Quiz
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Instructional Technology
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Professional Development
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Medium
Nasreldein Yahya
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cruise mode
Back up mode
Limp-Home mode
Sleep mode
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When you are performing the compression pressure test and you find a low pressure incident to narrow down the cause you will pour small amount of oil, so if the pressure improved so the possible cause it will be?
Piston and valve seat.
Valve and valve seat.
Piston rings.
Piston and valve seat.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When DTC detected by ECM, records driving conditions such as the calculated load value, engine coolant temperature, engine speed, vehicle speed and intake manifold pressure, what does this called?
VDR(Vehicle Data Recorder)
NVR(Nissan Vehicle Data Recorder)
FFD(Freeze Frame Data)
Data Monitor
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the 3 CORRECT factors that are crucial for the ECCS?
Engine, catalyst, tail pipe.
Fuel flow system, air flow system, electronic (ignition) system.
ECM, injector, spark plug
TCM, injector, spark plug
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the CORRECT description about the fuel injection quantity control system?
Camshaft position sensor signal is mainly used.
Engine coolant temperature sensor signal is mainly used.
Mass air flow sensor signal is mainly used.
Knock Sensor mainly used.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the air-fuel ratio is Lean (higher fuel content) than the stoichiometric air-fuel ratio (14.7), choose the CORRECT gas which three-way catalyst conversion ratio decreases?
NOx
HC
CO
CO2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the WRONG troubleshooting method for a knocking engine?
Delay the ignition timing
Replace the coolant
Remove the carbon in the combustion chamber
use fuel that has a high-octane number
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