Engine Management System Fault Diagnosis

What is the engine rpm according to the freeze frame data?

• 800

• 910

• 1000

• 950

Fill in the blank: The EVAP Purge Valve percentage in the freeze frame data is ____.

• A) 10%

• B) 5%

• C) 0%

• D) 15%

What is the primary function of the evaporative emissions control (EVAP) system?

• To increase fuel efficiency

• To reduce hydrocarbon emissions by storing fuel vapors in a vapor canister

• To enhance engine performance

• To monitor tire pressure

The EVAP system stores fuel vapors in a ______.

• Fuel tank

• Vapor canister

• Engine

• Exhaust pipe

What is the first step in the Eight Step Diagnosis Procedure?

• Perform basic inspection and test

• Verify the problem

• Retrieve stored diagnostic trouble codes (DTCs)

• Evaluate diagnostics equipment data.

Fill in the blank: In the Eight Step Diagnosis Procedure, Step 3 is to ______.

• Verify the problem

• Perform basic inspection and test

• Retrieve stored diagnostic trouble codes (DTCs)

• Evaluate diagnostics equipment data.

What is the first step in verifying a vehicle problem according to the image?

• Check the oil level

• Verify the problem by checking the vehicle

• Replace the battery

• Test drive the vehicle.

The check engine lamp is on. What should be the next step?

• Ignore it

• Verify the problem by checking the vehicle

• Replace the engine

• Check the tire pressure.

What should you visually inspect a vehicle for during a basic inspection?

• Damage

• Tampering

• Bad repair work

• All of the above.

During a basic vehicle inspection, you should visually inspect the vehicle for damage, tampering, and ________.

• A) Good repair work

• B) Bad repair work

• C) New parts

• D) Cleanliness