Classic fuel injection diagnostics & restoration

Rare expertise
We have deep experience with classic and early-generation injection systems - a rare skill set in modern workshops.
Proper testing
We diagnose using fuel pressure and control testing, calibration checks, and targeted fault finding - not parts swapping.
Precision tuning
These systems require precision. We restore drivability, starting, and idle quality with careful calibration and verification.
Classic Fuel Injection Systems in Melbourne
Specialist diagnostics and repair for classic mechanical and early electronic fuel injection systems in Melbourne, including K-Jetronic, KE-Jetronic, KE-Motronic, LH-Jetronic and other Bosch systems.
At StalexAuto, we service classic mechanical and early electronic fuel injection systems - and we treat them with the specialist attention they require.
If your vehicle struggles with cold starts, runs lean/rich, hesitates under load, or has inconsistent idle - we can diagnose and restore the system correctly.
Classic fuel injection systems (our specialty)
We work with systems such as:- K-Jetronic
- KE-Jetronic
- KE-Motronic
- LH-Jetronic
- LE-Motronic
- LE3-Motronic
Why choose StalexAuto?
- Rare expertise in classic systems
- Proper diagnostics - not guesswork
- Attention to detail and precision tuning
- Passion for classic engineering
What we can do for classic injection systems
These systems require specialised knowledge, precision, and experience. We test and calibrate the system components so the engine delivers the correct mixture across idle, cruise, and load conditions.
If you’re restoring a classic, we can help bring drivability back to factory-like behaviour while preserving the character of the original engineering.
Our classic fuel injection services can include:
System diagnostics and fault finding
Fuel pressure and control testing
Warm-up regulator (WUR) diagnostics
Airflow meter and sensor calibration
Injector testing and balancing
Full system restoration and verification
Related services
Common questions about Classic Fuel Injection Systems
What classic fuel injection systems do you work on?
We diagnose and repair older mechanical and early electronic fuel injection systems common on European classics, including cold-start and drivability faults.
Is classic fuel injection different from modern EFI?
Yes. Older systems need specialist knowledge and correct test procedures — fault codes alone rarely tell the full story on classic injection.
Can you help if my classic runs rich or won’t idle?
Rich running, hard starting and idle faults are common request reasons. Book diagnostics with a clear symptom description and we will inspect and quote.
See What Our Satisfied
Customers Say
Ready to book or need advice first?
Call us to discuss symptoms, request a quote for a specific repair, or book a service online. We are happy to talk through diagnostics, inspections and gearbox work before you commit to major repairs.