Diagnostic Expert cum Trainer Interview Questions and Answers

The engine may not start or may stall while driving if the crank sensor is removed.

• Engine may not start

• Engine may stall while driving

• Loss of engine power

• Check engine light may illuminate

The EGR system recirculates a portion of exhaust gases back into the engine intake to reduce emissions and improve fuel efficiency.

• EGR valve controls the flow of exhaust gases into the intake manifold

• Helps lower combustion temperatures to reduce NOx emissions

• Improves fuel efficiency by reducing the amount of oxygen in the combustion chamber

• Common issues include carbon buildup and valve malfunctions

CAN high and CAN low lines are communication lines used in automotive networks to transmit data between electronic control units.

• CAN high line carries high voltage signals

• CAN low line carries low voltage signals

• Differential voltage between CAN high and CAN low lines determines the data being transmitted

• Used in Controller Area Network (CAN) protocol in vehicles

AMT stands for Automated Manual Transmission, while MT stands for Manual Transmission. AMT is a semi-automatic transmission with automated clutch and gear shifting, while MT requires manual clutch and gear shifting.

• AMT has automated clutch and gear shifting, while MT requires manual operation

• AMT provides convenience of automatic transmission with fuel efficiency of manual transmission

• AMT is easier to drive in traffic compared to MT

• Examples: Maruti Suzuki Celerio AMT vs Maruti...read more