Dismantling Injection Tool Common Rail Bosch Injector Removing Repair Tools

Zhengzhou Liseron Oil Pump & Nozzle Co., Ltd is specialized in core spare parts of diesel injection system for more than 20 years, mainly producing and selling diesel nozzle, pump plunger, delivery valve, injector assembly, control valve, valve cap 334, CRIN repair kits, injector adjusting shim, common rail nozzles, common rail injector tester and repair tools. Except our own brand "Haoteng" and "DYD", we are also agent of UK ERIKC brand common rail parts.

We prfessional common rail injector parts, like nozzle, injector valve , injector shim ect.

All the goods have stock, delivery within 1-3 days, Choice Express DHL/EMS/FEDEX/UPS ect. you will get goods within 6-11 days.

FAQ: Most injectors fall into two categories: High or Low Impedance

ERIKC Answer: High Impedance.

These have a typical coil resistance of 12 – 16 ohms and are the most commonly used. Drive circuitry for this type of injector is simple and sometimes referred to as a saturated driver circuit.

Low Impedance.

Low Impedance Injectors has normally a coil resistance of 4 ohms or less and is typically found in larger sized or high performance injectors. Driver circuitry for these types is called a Peak - Hold type and is more complex and costs more than the saturated type.

In a Peak - Hold system, the driver circuit allows a high current for a short time to help turn the injector on quickly. The current is then reduced to a lesser value to keep the injector open. Peak current may be 4 amps to open the injector. Once open, the current might be reduced to as little as 0.75 amps.

With the lower coil resistance, the internal spring pressure that holds the pintle closed can be increased to shut the injector quicker. This allows both faster opening and closing times and makes tuning large injectors easier.

Peak – Hold systems reduce the power requirements to the injector coil thus keeping the coils from overheating.