Question 1

Technician A says the fuel injectors used with EEC V are compatible with propanol. Technician B says the fuel injectors used with EEC V are compatible with butanol. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

The fuel injectors used with EEC V are not specifically designed to be compatible with propanol or butanol. Compatibility depends on the specific materials and design of the injectors, which are typically optimized for gasoline and ethanol blends.

Question 2

The digital frequency that represents barometric pressure at sea level on an EEC V system is:
A) 92 Hz
B) 159 Hz
C) 100 Hz
D) 50 Hz

Accepted Answer

B

Question 3

The EGR system module (ESM) contains all of the following components EXCEPT the:
A) EGR valve
B) DPFE sensor
C) EGR vacuum regulator (EVR)
D) metering orifice

Accepted Answer

The metering orifice is not a component of the EGR system module (ESM). The EGR system typically includes the EGR valve, DPFE sensor, and EGR vacuum regulator (EVR).

Question 4

What is the purpose of the fuel pressure regulator on a return-type fuel system?
A) To raise the fuel pressure when the intake vacuum increases
B) To maintain fuel pressure in the fuel tank
C) To maintain a constant fuel pressure drop across the fuel injectors
D) To maintain a constant fuel pressure in the fuel rail

Accepted Answer

The fuel pressure regulator in a return-type fuel system maintains a constant fuel pressure drop across the fuel injectors, ensuring consistent fuel delivery regardless of engine load or speed.

Question 5

The EEC V MAF sensor is being discussed. Technician A says the sensor has traditionally sent a digital signal to the PCM. Technician B says the hot-wire-sensing element measures the voltage required to maintain the temperature of the hot wire. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of The EEC V MAF sensor is being...

Question 6

A modern Ford vehicle equipped with Fail-Safe Cooling is being diagnosed. The customer says the engine runs rough and the temperature warning lamp is on. Technician A says that the PCM is disabling fuel injectors to keep the engine from overheating. Technician B says that if the temperature reaches 330 ° F, the fuel injectors will shut off. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because the Fail-Safe Cooling system in some Ford vehicles is designed to disable fuel injectors to reduce engine power and heat production when overheating is detected, allowing the driver to "limp home." Technician B is also correct because, at extreme temperatures like 330°F, the system may shut off fuel injectors completely to prevent engine damage, indicating both technicians' statements are accurate regarding the system's operation.

Question 7

On the two-valve-per-cylinder engine, the CMP sensor is a single Hall effect sensor activated by a vane driven by the:
A) camshaft
B) crankshaft
C) distributor
D) DIS module

Accepted Answer

The CMP (Camshaft Position) sensor, especially in a two-valve-per-cylinder engine setup, is typically activated by the camshaft. This is because the sensor's primary function is to monitor the position of the camshaft itself, which in turn helps in managing the engine's timing for fuel injection and ignition.

Question 8

Which of the following was implemented by Ford with the EEC III high-pressure CFI system in 1980 and continued to be used through the 2009 model year?
A) The fuel pump
B) The ignition system
C) The PCM
D) The inertia switch

Accepted Answer

The inertia switch was implemented by Ford with the EEC III high-pressure CFI system in 1980 and continued to be used through the 2009 model year. This safety device is designed to cut off the fuel supply in the event of a collision to prevent fuel leakage and potential fires.

Question 9

When resetting a Ford inertia switch that has tripped, it is critically important for the technician to follow the resetting of the switch by:
A) performing a KAM reset within the PCM
B) pressurizing the fuel system and checking it carefully for fuel leaks
C) initiating a KOEO self-test and checking for resulting DTCs
D) using a scan tool to verify the Mode $06 data for the fuel trim monitor

Accepted Answer

The inertia switch is a safety device that cuts off fuel supply in the event of a collision. After resetting it, pressurizing the fuel system and checking for leaks is crucial to ensure there are no fuel leaks that could pose a safety hazard.

Question 10

A downstream oxygen (O₂) sensor is reading the same as the upstream O₂ sensor. What does this indicate? A) The downstream sensor is defective and must be replaced. B) The converter has low efficiency. C) The upstream sensor is not working properly. D) The converter is working properly.

Accepted Answer

The downstream oxygen sensor reading the same as the upstream sensor typically indicates that the catalytic converter is not efficiently converting the exhaust gases, suggesting low converter efficiency.

Question 11

Which statement about the coil-per-plug (CPP) ignition system is correct?
A) The system uses a waste spark system.
B) The system uses four ignition coils on a V8 engine.
C) The PCM directly controls the coils.
D) The system uses an ignition control module.

Accepted Answer

The PCM (Powertrain Control Module) directly controls the coils in a coil-per-plug (CPP) ignition system, allowing for precise timing and control of the ignition process.

Question 12

Which statement about intake manifold runner control (IMRC) is correct?
A) The manifold runner is shortened at low RPM and load conditions.
B) The valve is cable operated.
C) The valve is operated by the IMRC module.
D) The manifold runner is shortened at high RPM and load conditions.

Accepted Answer

The answer of Which statement about intake manifold runner control...

Question 13

The differential pressure sensor on a vehicle equipped with a returnless fuel system is being discussed. Technician A says the sensor monitors fuel rail pressure. Technician B says the sensor monitors intake manifold absolute pressure. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of The differential pressure sensor on a vehicle...

Question 14

Technician A says adaptive strategy could also be called learning capacity. Technician B says adaptive strategy could also be called self-correction ability. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Adaptive strategy in automotive systems refers to the ability of the system to adjust its functioning based on feedback or past performance. This can indeed be described as both a learning capacity and a self-correction ability, making both Technician A and Technician B correct.

Question 15

Crankshaft position (CKP) sensors are being discussed. Technician A says the sensor consists of a variable reluctance sensor. Technician B says the sensor produces a DC voltage signal. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because a crankshaft position (CKP) sensor can indeed consist of a variable reluctance sensor, which generates an AC (alternating current) signal as opposed to a DC (direct current) voltage signal. Technician B is incorrect because CKP sensors typically do not produce a DC voltage signal directly.

Question 16

Which sensor produces the tach reference signal for the PCM?
A) The CHT sensor
B) The HEGO sensor
C) The CKP sensor
D) The IAT sensor

Accepted Answer

The CKP sensor, or Crankshaft Position sensor, produces the tach reference signal for the Powertrain Control Module (PCM). This sensor monitors the position or rotational speed of the crankshaft to manage timing and engine operation.

Question 17

The variable cam timing (VCT) system is being discussed. Technician A says the system can adjust the cam timing up to 30 degrees. Technician B says the system uses oil pressure to control the camshaft timing. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of The variable cam timing (VCT) system is...

Question 18

Beginning with the 2002 model year on the Lincoln LS and the Ford Thunderbird, Ford divided the GEM into two control modules. These modules are referred to as the:
A) GEM and the BCM
B) BCM and the ABCM
C) FEM and the REM
D) IPC and the MIC

Accepted Answer

Ford divided the Generic Electronic Module (GEM) into two separate modules: the Front Electronic Module (FEM) and the Rear Electronic Module (REM) starting with the 2002 model year for the Lincoln LS and the Ford Thunderbird.

Question 19

MAP sensors are being discussed. Technician A says Ford deleted the physical MAP sensor with the introduction of the EEC V system. Technician B says the digital MAP sensor carried over into the EEC V system. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because Ford indeed eliminated the physical MAP (Manifold Absolute Pressure) sensor with the introduction of the EEC V (Electronic Engine Control, fifth generation) system, opting instead to infer manifold pressure through software algorithms and other sensor inputs.

Question 20

Which component of the returnless fuel system is located outside of the fuel tank?
A) The fuel pump
B) The fuel screen
C) The fuel pressure relief valve
D) The fuel pump driver module

Accepted Answer

The fuel pump driver module, which controls the speed of the fuel pump to regulate pressure, is typically located outside of the fuel tank, unlike the other components listed which are usually found within or directly attached to the fuel tank.

Quiz 13: Ford Motor Company Computerized Engine Controls

Technician A says the fuel injectors used with EEC V are compatible with propanol. Technician B says the fuel injectors used with EEC V are compatible with butanol. Who is correct?

The digital frequency that represents barometric pressure at sea level on an EEC V system is:

The EGR system module (ESM) contains all of the following components EXCEPT the:

What is the purpose of the fuel pressure regulator on a return-type fuel system?

The EEC V MAF sensor is being discussed. Technician A says the sensor has traditionally sent a digital signal to the PCM. Technician B says the hot-wire-sensing element measures the voltage required to maintain the temperature of the hot wire. Who is correct?

On the two-valve-per-cylinder engine, the CMP sensor is a single Hall effect sensor activated by a vane driven by the:

Which of the following was implemented by Ford with the EEC III high-pressure CFI system in 1980 and continued to be used through the 2009 model year?

When resetting a Ford inertia switch that has tripped, it is critically important for the technician to follow the resetting of the switch by:

A downstream oxygen (O2) sensor is reading the same as the upstream O2 sensor. What does this indicate?

Which statement about the coil-per-plug (CPP) ignition system is correct?

Which statement about intake manifold runner control (IMRC) is correct?

The differential pressure sensor on a vehicle equipped with a returnless fuel system is being discussed. Technician A says the sensor monitors fuel rail pressure. Technician B says the sensor monitors intake manifold absolute pressure. Who is correct?

Technician A says adaptive strategy could also be called learning capacity. Technician B says adaptive strategy could also be called self-correction ability. Who is correct?

Crankshaft position (CKP) sensors are being discussed. Technician A says the sensor consists of a variable reluctance sensor. Technician B says the sensor produces a DC voltage signal. Who is correct?

Which sensor produces the tach reference signal for the PCM?

The variable cam timing (VCT) system is being discussed. Technician A says the system can adjust the cam timing up to 30 degrees. Technician B says the system uses oil pressure to control the camshaft timing. Who is correct?

Beginning with the 2002 model year on the Lincoln LS and the Ford Thunderbird, Ford divided the GEM into two control modules. These modules are referred to as the:

MAP sensors are being discussed. Technician A says Ford deleted the physical MAP sensor with the introduction of the EEC V system. Technician B says the digital MAP sensor carried over into the EEC V system. Who is correct?

Which component of the returnless fuel system is located outside of the fuel tank?

A downstream oxygen (O₂) sensor is reading the same as the upstream O₂ sensor. What does this indicate?