Basics of diesel intake, compression, power and exhaust

Some 2.0 HDi vehicles may develop hard or non-start problems which can be attributed to the fuel injection system. This may be due to failures in either the low pressure feed to the high pressure pump, or the high pressure pump itself.

Vehicle Applications Engine Models Systems Toyota 1AD-FTV (2L) / 1KD-FTV (3L) / 2AD-FHT (2.2L)/ 2AD-FTV (2.2L)/2KD-FTV (2.4L) Diesel Systems Summary The correction code...

Despite making its debut in the mid 1950’s, Gasoline Direction Injection (GDi) has only recently come into its own, as vehicle manufacturers look for more meaningful ways to meet increasingly stringent emissions standards.

Here we take a look at the common causes of injector failure, what the symptoms are and how to diagnose them for a best practice injector service.

For smaller shops, it’s not always feasible to buy large testing equipment to check the flow rate of diesel injectors. In those cases, you can use the high voltage lead test...

It’s important to avoid contamination of injectors during a repair. Contamination during repairs can come from dirt around the fittings, your wrenches, your hands and many...

Non common rail technology can be broken out into three types: in line, which is sometimes called a rotary pump; an individual control pump and a unitized injection pump.

PIDs – or Parameter IDs – are important to understand when making diesel repairs. They are part of the heart of the diesel common rail and system.

It’s important to avoid contamination of injectors during a repair. Contamination during repairs can come from dirt around the fittings, your wrenches, your hands and many other places....

Understanding how diesel injectors spray can help you understand injector diagnosis better.

Insufficient pressure and flow are an indication that a fuel pump is under-performing, but do not necessarily mean that it is failing.

With today’s Common Rail injector technology, it’s no longer sufficient to just measure resistance to check a coil’s health – you also need to measure inductance for an immediate and accurate assessment. Previously separate tools would have been needed for this. Not with our Electronic Injector Test kit. Otherwise known as the ‘buzz tool,’ or part number YDT720, you’ll be able to quickly test the electrical integrity of all makes of solenoid Common Rail injectors on vehicle. The simple,hand-held tool measures the injectors core criteria, allowing you to quickly compare values and identify if any are not within a comparable performance range, or confirm specific electronic failures which may indicate an unrepairable injector. You can also use it in conjunction with our solvent cleaning kit to resolve early-stage lacquering. All with just one tool, saving significant time and cost for the garage.

Designed for specialist workshops, our patented HD3000, part number YDT840, simplifies the diagnosis of faults with current and future-generation diesel and gasoline high pressure fuel systems, on all vehicle types. With one tool users will be able to safely set and electronically control any pressure testpoint , up to 3000 bar, in order to investigate the full range of pressures and analyse the performance of the fuel injection system – previously this level of flexibility, accuracy and pressure capability could only be achieved with a system-dedicated test bench. Containing an electronic control device, hydraulic block and electrical device, it incorporates multiple dedicated test routines, as well as an IMV cleaning procedure. All this can be achieved without changing any ECU parameter, dismantling the fuel injection system, or taking the vehicle out on a road test – helping workshops save valuable time and deliver faster service turnarounds.

Designed to work in conjunction with the Sealed Rail diagnostic kit, the False Actuator kit, part number YDT410, enables interrogation of the pump when a reduction in Common Rail system pressure has been identified. Simply fit the false actuator when maximum pressure cannot be generated using the sealed rail and vehicle actuator, to allow the pump to generate full system pressure. If the pump generates the correct pressure, then the vehicle actuator is considered faulty and should be replaced. On the other hand, if the pressure is still below the required level then there is a mechanical failure within the pump. It’s as easy as that!

Designed for the garage technician, LP35, part number YDT810, is a highly precise, ultra-fast, affordable hand-held tester for the low-pressure side of light, medium and heavy duty vehicles. With a single tool, you can perform quick and accurate pressure analysis across a wide range of positive and negative pressures, from minus one through to positive 35 bar -that’s why we called it the LP35. Unlike other entry level equivalents, it’s also compatible with most low-pressure circuits, as well as different fluids, so you’ll no longer need separate negative and positive pressure tools, saving both time and money. Add to this its static and dynamic functionality, and you’ve got a highly versatile, highly capable low-pressure tool.

Ten years ago, diesel got a bad rap. But today, the Delphi common rail is earning diesel a reputation for efficiency and power. Common Rail is the fuel injection system that meets strict emission regulations. It includes a high pressure pump, injector, rail, filter and ECU. Proof that engineering a fine fuel mist, like a fine wine, gets better with time. Please visit our DNA application to check your Common Rail Injector has been repaired by a Delphi Approved Workshop using Genuine OE Delphi parts.

Because Common Rail systems operate at extremely high pressures, any loss in pressure will have a knock-on effect on the vehicle – causing a progressive reduction in power and even a complete engine shut down. It is therefore imperative that any such issues are identified and resolved as early as possible. We have just the answer. Our Sealed Rail diagnostic kit, part number YDT850, provides simple, low-cost on-vehicle capability for all makes of Common Rail pumps and injectors. Consisting of a sealed rail pressure tester and injector back leakage measurement equipment, users can check the pressure being generated by a Common Rail pump and identify individual injectors that fail, meaning only faulty components will need to be replaced.

Our wide range of break-out cables and boxes lets you quickly find the cause of electrical faults with common rail injectors, and many other vehicle electronic components.