Heavy duty & off-highway Diesel Fuel Injection

Since the introduction of legislation in the early 1990s, the industry has seen a significant reduction in emissions levels. In fact, it would take 15 heavy duty vehicles today to produce the same level of particulate emissions as just one vehicle did 20 years ago. At Delphi, we’ve been at the forefront of these improvements, delivering cleaner, greener and more fuel efficient commercial vehicles. We also provide the parts, tools and know-how to service these vehicles, right the first time, every time. Keeping them driving as good as new for life.

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Rich OE legacy

Our heritage dates back to the legendary CAV brand, and the introduction of in-line and the iconic DPA pump – the best-selling rotary pump worldwide. Both were revolutionary for their time, setting new standards for reliability and power, and we’ve continued to push the boundaries ever since.

Three choices for fleets

By providing three choices – new, reman and repair – we can provide fleet managers with convenient service and maintenance at a very competitive cost.

Latest generation OE technology

Our latest generation F3 system takes engines beyond the 2021 global emissions and fuel economy regulations and through the next decade. Based on our proven Euro VI Common Rail technology and capable of 3,000 bar injection pressure, it delivers a substantial improvement in emissions, fuel economy and refinement for the lifetime of the engine.

OE-approved repair

In addition to new and remanufactured units, we also offer authorised repair through our global network of Delphi Diesel Centres. Replacing all wearable and performance critical parts, with like-for-like OE, and using OE-approved test plans and equipment, it offers a quality but economical solution.

Find your local diesel specialist here.

Reman

For an equally fast, yet more cost-effective turnaround we offer a range of remanufactured parts. Available off-the-shelf, typically within one to two years of vehicle launch, they are built using OE parts, equipment and processes, and are calibrated to exacting OE specifications.

OE expertise in the aftermarket

Of course, we’re committed to supporting these technologies in the aftermarket. We offer a range of new OE components, identical to those originally fitted, including our pioneering Electronic Unit Injector, Electronic Unit Pump, Smart injector and Multec® Common Rail.

Commercial vehicle diagnostics and test

Our dedicated diagnostic solution for trucks, buses and trailers, supports the key commercial vehicle manufacturers and systems, including the ability to carry out dosing tests, Adblue freeze monitoring calibration, system drain down and regeneration of the SCR system. We also offer a range of OE-approved test equipment for quick and accurate test and repair of the latest heavy duty applications.

Training from the OE experts

Designed to help you prepare for the very latest heavy duty diesel fuel injection technologies, our extensive training programme covers the repair of key systems, including Electronic Unit Injector and Pump and Smart injectors. Learn more about our training.

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The Delphi Difference

100 years of OE experience, supplier to the world’s top automakers
OE heritage and knowledge built into every aftermarket part
Comprehensive portfolio for a wide range of vehicles and model years
Streamlined SKUs for easy inventory management
Support through tools, tips and training

Related product resources and downloads

1 min read

How to check the electrical status of a Common Rail injector

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Diesel Fuel Systems How to Technicians 1 min read

Resource Highlights

An electrical fault in a common rail injector can be one of the many reasons why the check engine light comes on in a car. A faulty CR injector would cause issues with the spray of fuel into the combustion chamber, or even stop it happening at all.

With this instructional video you can pick up a few tips on how to check the electrical status of a CR injector, courtesy of the experts at Delphi. Here you’ll find out:

• What equipment you’ll need

• How to measure resistance, inductance and insulation

• How to replace a common rail injector

What does the common rail injector do?

The common rail stores fuel that’s been pressurised inside the fuel pump, before the injector sprays it into the combustion chambers. With one injector per cylinder, each injector can be adjusted to the engine’s specification and optimum firing rate.

Why can common rail injectors fail?

Common rail injectors are pretty long-lasting in general, but wear and tear from issues such as deposit build-up and incorrect installation can affect them over time. There’s also the risk of water contamination from the fuel. Any of these can shorten a part’s lifespan.

What does the electrical diagnostic tool do?

You can use the YDT720 electrical diagnostic tool to check the resistance, inductance and insulation of solenoid-type injectors. If these checks don’t return the desired results (depending on make and model), it’s possible that there’s an electrical problem with the injector.

What is the error code for a fuel injector?

If you’re checking for an issue with the fuel injector using an OBD tool, the error code will likely show up in the range beginning P0200. Other codes in this area tend to be related to engine misfire issues – which is one of the symptoms of a faulty common rail injector.

Why do I code the injector with a BlueTech tool?

If you’re fitting a replacement common rail injector, first make a note of the new correction code. Once it’s installed, reprogramme the ECU with the new correction code. You do this so that the engine knows it needs to adjust timings for the fuel spray.