Page 1 of 2
Title / Demonstrate knowledge of Denso electronically controlled diesel (ECD) fuel injection pumps
Level / 4 / Credits / 2
Purpose / This theory-based unit standard is for people in the diesel fuel injection industry. People credited with this unit standard are able to demonstrate knowledge of Denso ECD fuel injection pumps.
Classification / Motor Industry > Automotive Fuel Systems and Exhaust
Available grade / Achieved
Guidance Information
1 Definition
Service information may include but is not limited to – technical information of a vehicle, machine, or product detailing operation; installation and servicing procedures; manufacturer instructions and specifications; technical terms and descriptions; and detailed illustrations. This can be accessed in hard copy or electronic format and is normally sourced from the manufacturer.
2 Range
This unit standard includes the following model fuel injection pumps – ECD-V3, ECD-V4.
Outcomes and performance criteria
Outcome 1
Demonstrate knowledge of Denso ECD fuel injection pumps.
Performance criteria
1.1 Pump construction is described in accordance with service information.
Range distributor type features, identification of components, layout of components.
1.2 Pump operation is explained in accordance with service information.
Range pumping action, control of fuel injection volume, sensors, electronic control unit, actuators, fuel injection timing.
1.3 The importance of cleanliness when working with fuel injection components is identified in accordance with service information.
Range contamination, precise machining tolerances and close operating fits of components, damage and premature failure.
1.4 Faults which affect the fuel pump operation are described in accordance with service information.
Range fuel contamination, misalignment of fuel pump and drive train, sensor faults, injector seal leakage, incorrect adjustments.
1.5 Wear patterns on components are described in accordance with service information.
Range fuel contamination, misalignment, lack of lubrication, corrosion, abrasion, cavitation.
1.6 Pump repair procedures are described in accordance with service information.
Range cleaning, testing, dismantling, overhauling, replacing electronic controls, reassembling.
This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 25 January 2008 / 31 December 2020
Review / 2 / 26 April 2018 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
MITO New Zealand IncorporatedSSB Code 101542 / Ó New Zealand Qualifications Authority 2018