SOUTH AFRICAN QUALIFICATIONS AUTHORITY

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					                        SOUTH AFRICAN QUALIFICATIONS AUTHORITY
                                  REGISTERED UNIT STANDARD:

             Diagnose, test and repair electronic automobile fuel injection systems
SAQA US ID                       UNIT STANDARD TITLE
                                 Diagnose, test and repair electronic automobile fuel injection
12230
                                 systems
SGB NAME                         ABET BAND                 PROVIDER NAME
SGB Manufacturing and
                                 Undefined
Assembly Processes


FIELD DESCRIPTION                                          SUBFIELD DESCRIPTION
Manufacturing, Engineering and Technology                  Manufacturing and Assembly
                                 UNIT STANDARD
UNIT STANDARD CODE                                         NQF LEVEL                CREDITS
                                 TYPE
MET-MNA-0-SGB MAP                Regular                   Level 4                  16
REGISTRATION START               REGISTRATION END REGISTRATION                      SAQA DECISION
DATE                             DATE             NUMBER                            NUMBER
2002-12-04                       2005-12-04                12230                    SAQA 0345/02


PURPOSE OF THE UNIT STANDARD
The skills, values and knowledge reflected in this unit standard are required by people in the field of
autotronics.

The learning outcomes in this unit standard also contribute to the exit level outcomes required for
the autotronics NQF level 4 qualification.

Qualifying learners can diagnose, test and repair electronic fuel injection systems on automobiles.

LEARNING ASSUMED TO BE IN PLACE
This unit standard has been designed as part of a progression.

The credits allocated to this unit standard assume that a learner has already learnt to:
 Construct and test advanced electronic circuits
 Service and repair electronic automobile ignition systems

UNIT STANDARD RANGE
The scope and level of this unit standard is determined by the ranges as indicated under specific
outcomes.

The learner should be able to work autonomously.


Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1
Discuss and explain the operation op an electronic fuel injection system
OUTCOME RANGE
Electronic fuel injection systems include multipoint injection and throttle body injection (single
point).

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1.   Appropriate components are chosen
2.   Appropriate voltage source is chosen when servicing
3.   Test equipment is selected and used correctly
4.   Safe working practices are adhered to while carrying out activities
5.   Appropriate fault finding and diagnostic procedures are used
6.   Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals

SPECIFIC OUTCOME 2
Read and interpret block diagrams of an electronic fuel injection system
OUTCOME RANGE
Block diagrams include diagrams of multipoint and throttle body (single point) fuel injection systems
and related sub-systems.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals

SPECIFIC OUTCOME 3
Identify and select electronic fuel injection system and sub-system components
OUTCOME RANGE
Electronic fuel injection components include electrically operated injectors electronic control unit.

Sub-system components include air-intake system, fuel system, control system related components.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals

SPECIFIC OUTCOME 4
Locate faults on an electronic fuel injection system
OUTCOME RANGE
Locate faults using appropriate measuring equipment, diagnostic procedures, manufacturer specific
manuals.

Measuring equipment include digital code checker, multi meter, test lamps oscilloscope, pressure
gauge, vacuum pump, flow rate meter.

Basic faults include hard starting, unstable idle, runs rough, injectors, sensors.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals

SPECIFIC OUTCOME 5
Service electronic fuel injection systems
OUTCOME RANGE
Servicing includes electrical/electronic system, air system, fuel system.

ASSESSMENT CRITERIA
ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals

SPECIFIC OUTCOME 6
Apply the relevant system safety and servicing precautions
OUTCOME NOTES
Apply the relevant system safety and servicing precautions when working with electronic fuel injector
systems.
OUTCOME RANGE
Servicing precautions include electrical, air system, fuel system and general as specified in the
manufacturer`s servicing manual.

Safety precautions include work area safety, electrical safety, work area house keeping and vehicle
cleanliness restored.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals
SPECIFIC OUTCOME 7
Discuss and report incidents and problems related electronic fuel injector systems
OUTCOME NOTES
Discuss and report incidents and problems related electronic fuel injector systems and complete fault
finding reports and requisitions.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
1. Electronic fuel injection circuits diagrams and related symbols are read and interpreted correctly
2. Serviced components are replaced/adjusted and meet specifications
3. All defective components are marked, removed and reported
4. Relevant documentation is correctly filled in.

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturers specifications are followed and adhered to

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Multipoint injection systems
2. Throttle-body (single point) injection
3. Control feed back loop
4. Selection and use of components
5. Diesel as an alternative fuel
6. Diagnosis and testing of electronic fuel injection systems
7. Consequences of not apply relevant safety practices and procedures
8. Manufacturer`s specification manuals



UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS
My assessment will be governed by the policies and guidelines of the MERSETA Education and
Training Quality Assurer who has jurisdiction over this field of learning. My assessor will (at the very
least) be accredited and have a technical qualification in this learning area.

I can be assessed in the language of my choice although if I have to report incidents or conditions to
someone else, I will be assessed on my ability to report in the language commonly used in my
working environment.

I will be assessed in the workplace but I can submit documents, projects, test results and
assignments that were not produced in the workplace.

I can be assessed against this unit standard to obtain credits or as part of an integrated assessment
for a qualification.

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE
1. Names and functions of:
 Injectors
 Sensors
 Electronic control unit
 Feed back loop control
 Sub-systems
 Diesel and petrol
 Electronic fuel injector systems
2. Purpose of:
 Electronic control unit
 Testing of circuits and components
 Applying electronic safety
 Diagnosing fault conditions
3. Attributes, descriptions, characteristics and properties:
 Fuel (diesel/petrol)
 Electronic fuel injector systems
 Electronic test equipment
4. Sensory cues:
 Use of senses to detect faulty component in a circuit
 Use of sight to read circuit diagrams and test equipment
5. Causes and effects, implications of:
 Causes of damage and injury
 Implications of incorrect source voltages
 Implications incorrect testing applications
 Implications of incorrect component selection
 Implications of not observing manufacturer`s specifications
6. Procedures and techniques:
 Safety procedures
 Fault finding procedures for components and fuel injector circuits
 Diagnostic techniques for fault location
 Repairing procedures
7. Regulations, legislation, agreements, policies, standards:
 Applicable safety, health and environmental legislation
8. Theory: rules, principles laws:
 Feedback control loop
 Injector operation
 Electronic control unit
 Communication medium
 Other related topics
9. Relationships, systems:
 Relationship between electronic fuel injection systems and electronic ignition systems
 Relationship between electronic fuel injection systems and engine management systems
 Relationship between electronic fuel injection systems and other sub-systems


Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING
Identify and solve problems:

 Recognise situations that require action and correct when necessary

UNIT STANDARD CCFO WORKING
Work effectively with others:

 When servicing and repairing electronic automobile ignition systems

UNIT STANDARD CCFO ORGANIZING
Organise and manage myself and my activities:

 Apply the correct procedures for using, storing and looking after equipment, tools, test equipment,
circuit diagrams and components

UNIT STANDARD CCFO COMMUNICATING
Communicate effectively:

 Use common names for components
 Use common names for test equipment
 Use common names for systems

UNIT STANDARD CCFO SCIENCE
Use science and technology:

 Use and apply scientific principles to electronic fuel injection systems

UNIT STANDARD CCFO DEMONSTRATING
Demonstrate and understand of the world as a set of related systems:

 Relate the use of electronic control systems on an automobile and that of the electronic fuel
injection system
All qualifications and unit standards registered on the National Qualifications Framework are public property. Thus the
only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If
the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the
source.

				
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