At Hitech Auto Electrical & Mechanical we service all your electronic fuel injection (EFI) needs. Don't buy new injectors until you've had yours tested on our programmable test stand. We can ultrasonically clean, flow-match, leak-check and repair your injectors.
Since your car was new, dirt, varnishes and carbon deposits have been forming in the fuel system, on the intake valves and in the combustion areas. These build-ups rob your car of performance and, left untreated, can lead to costly engine repairs.
Our EFI services include
- Traditional & electronic EFI systems
- Engine management
- Fuel injector testing & repair
- Engine diagnosis and repairs
- Ultrasonic cleaning and back-flushing
- Flow testing (volumetric and timed)
- Fuel injection pump testing & repairs
- Emissions testing
- Servicing & general maintenance (all makes and models)
Injector flow-bench testing
Flow-bench testing requires the injectors to be removed from the engine. Each injector is set up on the test bench, supplied with a fuel-substitute test fluid, and pulsed as it would be in the engine. The fuel flow from each injector is measured and compared against the others and against calibration specifications, and the spray pattern from each nozzle is checked. Defective injectors can then be identified, cleaned, repaired or renewed.
What faults are caused by defective injectors?
A defective spray pattern causes poor atomisation, which can result in flooding, excessive fuel consumption and high exhaust emissions. Blocked injectors cause an excessively lean mixture, which requires a higher spark voltage to ignite and can lead to ignition problems, overheating and damaged valves.
Why do injectors deteriorate?
Fuels contain chemicals that form lacquer or varnish over time. This build-up clogs the fine holes in injector nozzles and can stop the needle valves seating properly, causing blockages and a deteriorated spray pattern. Dirt and condensation in the fuel system can also introduce contamination and moisture that lead to rust and nozzle deterioration.
🎁 Book a service over $500 and get an odour removal treatment FREE — worth $320 +gst.