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CourseRestoration & Classics Applications open

Bosch L-Jetronic Course: Restoration Fundamentals

Online 300-hour course in Bosch L-Jetronic: restoration fundamentals. 6 modules covering ISO 1585 (engine net power test code), ISO 7637-2 (transient electrical disturbances) and PicoScope. Dedicated tutor and open enrolment.

Duration300 h
ModeOnline
LanguageEnglish
Start datesSet by the faculty
AwardSEIUM Institute certificate
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Learning outcomes

What you will be able to do

01

Explain the air measurement principle of the vane airflow meter.

02

Verify the load signal and the resistive track of the airflow meter.

03

Check the pump, pressure regulator and injectors.

04

Review the control unit and the system wiring.

05

Carry out the tuning and mixture adjustment.

06

Diagnose faults and apply conservation measures.

07

Prepare a restoration procedure for the system.

Profile

Who it's for

  • Electronic injection technician who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Classic vehicle restorer who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Engine diagnostics technician who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Automotive electrical specialist who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Workshop manager who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Technical adviser to clubs who wants to specialise in Bosch L-Jetronic: restoration fundamentals.
  • Graduates in engineering or science who want to enter classic vehicle restoration.
Standards & tools

What you'll work with

  • ISO 1585 (engine net power test code)
  • ISO 7637-2 (transient electrical disturbances)
  • SAE J1128 (low-tension primary cables)
  • EN 228 (unleaded petrol)
  • EN 15376 (ethanol as a petrol component)
  • Royal Decree 920/2017 (vehicle technical inspection)
Syllabus

6 modules · 300 h

  1. 1.1Difference from previous systems
  2. 1.2System architecture
  3. 1.3Vane airflow meter and its potentiometer
  4. 1.4Control unit and its generation
  5. 1.5Injectors and group management
  6. 1.6Fuel circuit
  7. 1.7Temperature sensors
  8. 1.8Pump relay and safety
  9. 1.9Documentation and wiring diagrams
  10. 1.10Workshop: identification of the installed system
  1. 2.1Internal construction of the airflow meter
  2. 2.2Carbon track and its wear
  3. 2.3Adjusting the return spring
  4. 2.4Idle mixture screw
  5. 2.5Signal checking
  6. 2.6Cleaning and its risk
  7. 2.7Repair and alternatives
  8. 2.8False air intakes
  9. 2.9Effect of a dirty filter
  10. 2.10Practice: checking and adjusting the airflow meter
  1. 3.1Pump, filter and accumulator
  2. 3.2Operating pressure and its measurement
  3. 3.3Pressure and vacuum regulator
  4. 3.4Injectors: resistance, flow and leak-tightness
  5. 3.5Cleaning and bench testing
  6. 3.6Cold-start injector
  7. 3.7Auxiliary air valve
  8. 3.8Throttle and position switch
  9. 3.9Leaks and fire risk
  10. 3.10Practice: checking the complete circuit
  1. 4.1Power supply, earths and relays
  2. 4.2Pins and input signals
  3. 4.3Engine speed signal
  4. 4.4Checking with multimeter and oscilloscope
  5. 4.5Capacitors and ageing
  6. 4.6Unit repair
  7. 4.7Wiring harness and connectors
  8. 4.8Protection against moisture
  9. 4.9Diagnosis by substitution
  10. 4.10Practice: electrical diagnosis of the system
  1. 5.1Prior mechanical requirements
  2. 5.2Ignition and its timing
  3. 5.3Idle adjustment
  4. 5.4Mixture adjustment with analyser
  5. 5.5Systems with lambda sensor
  6. 5.6Load checking
  7. 5.7Reading spark plugs
  8. 5.8Consumption and performance
  9. 5.9Recording the final values
  10. 5.10Practice: complete tuning
  1. 6.1Difficult starting when cold and hot
  2. 6.2Unstable idle and hesitation
  3. 6.3High consumption
  4. 6.4Intermittent faults and their tracing
  5. 6.5Available spare parts and reproductions
  6. 6.6Conservation of the original system
  7. 6.7Modern conversion and reversibility
  8. 6.8Common workshop errors
  9. 6.9Documented real cases
  10. 6.10Final project: documented restoration of the injection system
Methodology, software & labs

How you'll learn

100% online training on the SEIUM campus, with downloadable material, recorded classes and a dedicated technical tutor. No fixed timetable: students progress at their own pace within the intake, which makes it possible to combine study with work.

Each module combines theory, guided reading of the original standard and applied exercises. The working software is PicoScope, advanced Excel, Gas analyser with logging software, Fluke Connect, in free, academic or evaluation versions. Tests are studied using real measurement procedures for airflow meter vane resistance, CO adjustment at idle, and injector flow testing. Assessment is continuous by module plus the final integrating project.

Accreditable laboratories(EN ISO/IEC 17025) with engine dynamometer, EMC/Lightning pre-compliance, HIL/SIL, vibration/acoustics.
Evidence-oriented final project:safety case, test plan, compliance dossier and operational limits.
Industry mentoring:lecturers with experience in training, , eVTOL/UAM and flight test.
Flexible format(hybrid/online), international cohorts and support from SEIUM Career Services.
Ethics and safety:safety-by-design approach, cyber-OT, DIH and compliance as its pillars.
Capstone project

Build it end to end

Your final project follows the real engineering workflow, step by step, reviewed by your tutor.

Difficult starting when cold and hot

Explain the air measurement principle of the vane airflow meter.

Unstable idle and hesitation

Verify the load signal and the resistive track of the airflow meter.

High consumption

Check the pump, pressure regulator and injectors.

Intermittent faults and their tracing

Review the control unit and the system wiring.

Available spare parts and reproductions

Carry out the tuning and mixture adjustment.

Career opportunities

Where this takes you

Electronic injection technicianClassic vehicle restorerEngine diagnostics technicianAutomotive electrical specialistWorkshop managerTechnical adviser to clubs
Admissions & scholarships

Requirements

  • No prior qualification is required.
  • Internet connection and a computer capable of running the programme's software.
  • Sufficient Spanish to follow technical standards documentation.

Ready to start?

Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.

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FAQ

Frequently asked questions

The programme consists of 300 total hours spread over 3 to 5 months. That is between 10 and 15 hours per week on average, compatible with full-time work.

You work with PicoScope, advanced Excel, Gas analyser with logging software, Fluke Connect. Free, academic or evaluation versions are used, and the tutor indicates the free alternative where one exists.

An SEIUM own diploma on passing the continuous assessment and the integrating project. It is in-house training, not an official qualification from the Ministry.

Yes. Modules passed in a course or postgraduate diploma in the same area are recognised in the higher programme. Check the recognition policy when you enrol.

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