Application
This unit describes the performance outcomes required to analyse and repair performance fuel injection systems and associated components. It involves identifying, evaluating, selecting, justifying and documenting the most appropriate rectification method or variation to the rectification method. It also involves developing and modifying performance improvement strategies in fuel injection systems and associated components. The unit includes the analysis of multi-system and intermittent faults which may be caused by operating in adverse conditions.
It applies to those working in the motor sport industry.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Elements and Performance Criteria
Elements Elements describe the essential outcomes. | Performance Criteria Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section. |
1. Identify and confirm effects of faults in fuel injection system | 1.1 Objective of analysis and evaluation is determined from workplace instructions 1.2 Specifications for fuel injection system are accessed and interpreted 1.3 Details of fault are examined and available preliminary information is documented 1.4 System faults, deficiencies or discrepancies are identified and confirmed from direct and indirect evidence 1.5 Hazards associated with the work are identified and risks are managed according to safety and environmental requirements |
2. Prepare for fault analysis | 2.1 Evaluative criteria are developed or adopted to meet the objective of analysis and evaluation 2.2 Analytical and evaluative methodology are developed or identified from technical information 2.3 Testing equipment is prepared according to manufacturer and workplace procedures 2.4 Tools and materials required to support diagnostic procedure are selected and checked for serviceability 2.5 Possible causes of fault are identified from analysis of technical support information and available on-board diagnostic systems |
3. Carry out analysis and determine repair and performance enhancement strategies | 3.1 Selected analytical and evaluative methodology is followed according to manufacturer and workplace procedures 3.2 Tests are carried out according to manufacturer and workplace procedures and safety and environmental requirements 3.3 Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes 3.4 Analytical findings and results are assessed against evaluative criteria 3.5 Valid conclusions are drawn from available evidence and documented according to workplace requirements 3.6 Options for responding to analysis and evaluation objective are determined from further research of technical support information 3.7 Repair or modification method is selected and documented |
4. Conduct repairs and implement performance improvement strategies | 4.1 Repair tools and materials are selected and prepared 4.2 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, team requirements and safety and environmental requirements, and without causing damage to other components or systems 4.3 Post-repair testing and vehicle start-up are carried out to ensure performance and operation are to team requirements |
5. Complete work processes | 5.1 Tools and equipment are cleaned, maintained and prepared for future use, and stored according to manufacturer specifications and team requirements 5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 5.3 Tools and equipment are checked and stored and problems reported to appropriate personnel according to team requirements 5.4 Workplace documentation is processed according to team requirements |
Evidence of Performance
Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:
analyse and repair faults in the performance of the fuel injection systems of three different competition vehicles, including:
two of the following faults:
rough running
under or over fuelling
contamination or leaks
one of the following faults:
fuel cell ventilation
pumps
pressure and/or flow regulation
conduct post-repair checks on the above fuel systems.
Evidence of Knowledge
Individuals must be able to demonstrate knowledge of:
work health and safety (WHS) and occupational health and safety (OHS) requirements relating to analysing and repairing performance fuel injection systems, including procedures for working with petrol fuel systems
environmental requirements, including procedures for trapping, storing and disposing of petrol fuel released during repair or testing
types, function, operation and limitations of fuel injection systems and components, including:
properties of fuels used in the motor sport industry, including compatibility with fuel injection system components
fuel injection system components, including:
air intake systems
fuel delivery systems, including fuel rails
fuel filters
fuel pumps
fuel surge tanks
adjustable fuel pressure regulators
fuel injectors, including peak-and-hold and saturated injectors:
fuel rails
fuel filters
fuel pumps
fuel surge tanks
adjustable fuel pressure regulators
management systems, including:
pressure and temperature sensors
electronic control units
diagnostic testing procedures of performance fuel injection systems, including:
symptom and cause differentiation
mapping fuel delivery
fuel trim and live data
fuel pump pressure, volume and vacuum testing
testing for air leaks
scan tool and data gathering
cold-start enrichment testing
exhaust gas analysis
procedures for repair and improvement of performance fuel injection systems, including fuel system component removal, replacement or repair, and adjustment procedures
post-repair testing procedures of performance fuel injection systems.
Assessment Conditions
Assessors must satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment must include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the performance fuel injection systems they have analysed and repaired, e.g. work order.
Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources must be made available:
automotive repair workplace or simulated workplace
workplace instructions
manufacturer specifications for vehicle performance fuel injection systems
three different competition vehicles with faults in their performance fuel injection systems
diagnostic equipment for performance fuel injection systems, including:
exhaust gas analyser
scan tool or data logger
tools, equipment and materials appropriate for analysing and repairing performance fuel injection systems.
Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential to performance and are not explicit in the performance criteria.
Skills | Description |
Learning skills to: | locate appropriate sources of information efficiently. |
Reading skills to: | interpret controlling body rules, category rules, and supplementary regulations interpret information from manufacturer and workshop literature when seeking fuel injection system specifications and procedures. |
Writing skills to: | legibly and accurately fill out workplace documentation when reporting analysis findings. |
Numeracy skills to: | measure fuel system components and use basic mathematical operations, including addition and subtraction, to calculate tolerances and deviations from manufacturer specifications interpret units of measurement of pressure and flow. |
Planning and organising skills to: | plan own work requirements and prioritise and sequence actions to achieve required outcomes and ensure tasks are completed within workplace timeframes. |
Self-management skills to: | work efficiently with minimal supervision. |
Technology skills to: | use precision measuring equipment, such as fuel pressure and flow rate gauges use specialised fuel system diagnostic equipment, such as scan tools and data loggers. |
Range Statement
This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.
Safety and environmental requirements must include: | work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working with petrol fuel systems environmental requirements, including procedures for trapping, storing and disposing of petrol fuel released during repair or testing. |
Analytical and evaluative methodology must include: | diagnostic process sequence of process tests testing equipment. |
Repair or modification method must suit: | operating conditions controlling body rules, category rules and supplementary regulations financial implications. |
Sectors
Technical - Fuel Systems
Competency Field
Motor Sport